







 
   
     
       
         A discourse made before the Royal Society, Decemb. 10, 1674 concerning the nature, causes, and power of mixture / by Nehemiah Grew.
         Grew, Nehemiah, 1641-1712.
      
       
         
           1674
        
      
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             A discourse made before the Royal Society, Decemb. 10, 1674 concerning the nature, causes, and power of mixture / by Nehemiah Grew.
             Grew, Nehemiah, 1641-1712.
          
           [17], 120 p.
           
             Printed for John Martyn,
             London :
             1675.
          
           
             Reproduction of original in the Harvard University Library.
          
        
      
    
     
       
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           Chemistry -- Early works to 1800.
           Chemistry, Inorganic -- Early works to 1800.
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           At
           a
           Meeting
           of
           the
           Council
           of
           the
           
             R.
             Society
          
           .
           January
           21.
           1674
           
           /
           5.
           
           Order'd
           ,
           THAT
           a
           Discourse
           made
           before
           the
           
             R.
             Society
             ,
             Decemb.
             10.
             1674.
          
           by
           Dr.
           
             Nehemiah
             Grew
          
           ,
           Concerning
           the
           Nature
           ,
           Causes
           ,
           and
           Power
           of
           Mixture
           ,
           &c.
           be
           Printed
           by
           the
           Printer
           of
           the
           
             R.
             Society
          
           .
        
         
           
             Brouncker
             .
             P.R.S.
             
          
        
      
       
         
         
           A
           DISCOURSE
           Made
           before
           the
           ROYAL
           SOCIETY
           ,
           Decemb.
           10.
           1674.
           
           Concerning
           the
           Nature
           ,
           Causes
           ,
           and
           Power
           of
           MIXTURE
           .
        
         
           By
           
             Nehemiah
             Grew
          
           ,
           M.
           D.
           and
           Fellow
           of
           the
           
             R.
             Society
          
           .
        
         
           LONDON
           ,
           Printed
           for
           
             John
             Martyn
          
           Printer
           to
           the
           
             Royal
             Society
          
           ,
           and
           are
           to
           be
           Sold
           at
           the
           Bell
           in
           St.
           Pauls
           Church-yard
           ,
           1675.
           
        
      
       
         
         
         
           To
           the
           Right
           Honourable
           WILLIAM
           Lord
           Viscount
           BROVNCKER
           ,
           PRESIDENT
           of
           the
           ROYAL
           SOCIETY
           .
        
         
           
             My
             Lord
             ,
          
        
         
           ONE
           Reason
           why
           I
           dedicate
           the
           following
           
           Discourse
           to
           Your
           Lordship
           ,
           is
           because
           by
           Your
           great
           and
           undeserved
           respects
           ,
           You
           have
           obliged
           me
           to
           do
           no
           less
           .
           How
           much
           more
           I
           cannot
           say
           ,
           unless
           I
           were
           able
           to
           compute
           the
           value
           of
           Your
           obligation
           .
        
         
           Another
           Reason
           ,
           my
           Lord
           ,
           is
           because
           I
           could
           not
           
           but
           publickly
           return
           Your
           Lordship
           thanks
           ,
           for
           minding
           the
           
             Royal
             Society
          
           of
           so
           good
           a
           way
           ,
           as
           they
           are
           lately
           resolved
           upon
           ,
           for
           the
           management
           of
           a
           great
           part
           of
           their
           business
           .
           Wherein
           ,
           my
           Lord
           ,
           I
           do
           more
           then
           presume
           ,
           that
           I
           also
           speak
           the
           sense
           of
           the
           whole
           Society
           ;
           I
           think
           ,
           
           not
           any
           one
           excepted
           .
        
         
           I
           may
           with
           the
           same
           confidence
           intimate
           ,
           my
           Lord
           ,
           how
           happy
           they
           account
           themselves
           ,
           in
           having
           a
           Person
           so
           fit
           to
           preside
           their
           Affairs
           ,
           as
           Your
           Lordship
           .
           The
           largeness
           of
           Your
           Knowledge
           ,
           the
           exactness
           of
           Your
           Judgment
           ,
           the
           evenness
           
           of
           Your
           Comport
           ;
           being
           some
           of
           those
           necessary
           Qualifications
           ,
           which
           His
           Majesty
           had
           in
           His
           eye
           ,
           (
           as
           right
           well
           understanding
           what
           He
           did
           )
           when
           He
           fixed
           His
           choice
           upon
           Your
           Lordship
           .
        
         
           I
           know
           ,
           my
           Lord
           ,
           that
           there
           are
           some
           men
           ,
           who
           have
           just
           so
           much
           understanding
           ,
           
           as
           only
           to
           teach
           them
           how
           to
           be
           ambitious
           :
           the
           flattering
           of
           whom
           ,
           is
           somewhat
           like
           the
           tickling
           of
           Children
           ,
           till
           they
           fall
           a
           dancing
           .
           But
           I
           also
           know
           ,
           that
           Your
           Lordship
           unconcerneth
           your self
           as
           much
           ,
           in
           what
           I
           even
           now
           spake
           ;
           as
           Caesar
           did
           himself
           ,
           when
           his
           Souldiers
           
           began
           to
           style
           him
           King.
           For
           as
           he
           said
           ,
           
             Non
             Rex
             ,
             sed
             Caesar
          
           :
           so
           let
           Your
           Lordship
           be
           but
           once
           nam'd
           ,
           and
           all
           that
           follows
           ,
           is
           but
           a
           Tautology
           to
           what
           You
           are
           already
           known
           to
           be
           .
           Your
           being
           President
           of
           the
           
             Royal
             Society
          
           ,
           Your
           being
           the
           first
           that
           was
           chosen
           ,
           and
           chosen
           
           by
           so
           Wise
           a
           King
           ;
           amounteth
           to
           so
           high
           and
           real
           a
           Panegyrick
           to
           Your
           Lordship
           ,
           as
           maketh
           verbal
           ones
           to
           be
           superfluous
           ,
           and
           leaves
           them
           without
           any
           sound
           .
        
         
           Whence
           ,
           my
           Lord
           ,
           I
           have
           a
           third
           Reason
           most
           naturally
           emergent
           ;
           which
           is
           ,
           that
           I
           dare
           to
           submit
           
           my self
           ,
           as
           to
           what
           I
           have
           hereafter
           said
           ,
           to
           Your
           Lordships
           Censure
           .
           You
           being
           so
           able
           ,
           and
           just
           an
           Arbiter
           ,
           betwixt
           the
           same
           and
           all
           those
           persons
           therein
           concern'd
           ;
           that
           You
           can
           neither
           be
           deceived
           ,
           nor
           corrupted
           ,
           to
           make
           a
           Judgment
           in
           any
           Point
           ,
           to
           the
           injury
           of
           either
           .
        
         
         
           And
           truly
           ,
           my
           Lord
           ,
           were
           it
           only
           from
           a
           principle
           of
           self-interest
           ,
           yet
           I
           could
           not
           desire
           it
           should
           be
           otherwise
           .
           For
           the
           World
           ,
           if
           it
           lives
           ,
           will
           certainly
           grow
           as
           much
           wiser
           then
           it
           is
           ;
           as
           it
           is
           now
           wiser
           then
           it
           was
           heretofore
           .
           So
           that
           we
           have
           as
           little
           reason
           ,
           to
           despise
           
           Antiquity
           ;
           as
           we
           can
           have
           willingness
           ,
           that
           we
           our selves
           should
           be
           despised
           by
           Posterity
           .
        
         
           Yet
           some
           difference
           there
           is
           to
           be
           made
           ;
           viz.
           betwixt
           those
           of
           all
           Ages
           ,
           who
           have
           been
           modestly
           ignorant
           ;
           and
           those
           who
           have
           thought
           ,
           or
           pretended
           ,
           that
           they
           were
           Omniscient
           .
           Or
           
           if
           knowing
           and
           acknowledging
           that
           they
           were
           ignorant
           ;
           have
           yet
           not
           been
           contented
           to
           be
           so
           ;
           unless
           ,
           with
           as
           good
           manners
           ,
           as
           sense
           ,
           they
           did
           conjure
           all
           Mankind
           ,
           not
           to
           offer
           at
           the
           knowing
           any
           more
           then
           themselves
           .
        
         
           Vpon
           the
           whole
           ,
           my
           Lord
           ,
           I
           desire
           not
           You
           should
           be
           
           a
           Patron
           ,
           any
           further
           then
           You
           are
           a
           Judge
           .
           For
           if
           this
           small
           Essay
           hath
           deserved
           the
           least
           acceptance
           ,
           I
           am
           sure
           ,
           that
           in
           being
           one
           ,
           You
           will
           be
           both
           .
           Whereby
           ,
           my
           Lord
           ,
           You
           will
           not
           a
           little
           nourish
           and
           inspire
           my
           future
           endeavours
           of
           the
           like
           nature
           :
           being
           very
           
           sollicitous
           to
           approve
           my self
           ,
        
         
           
             My
             Lord
             ,
          
           
             Your
             Lordships
             
               most
               faithful
               and
               obedient
               Servant
            
             ,
             Nehemiah
             Grew
             .
          
        
      
    
     
       
         
         
           A
           DISCOURSE
           Made
           before
           the
           ROYAL
           SOCIETY
           .
        
         
           HAVING
           the
           honour
           to
           perform
           the
           task
           of
           this
           day
           ;
           I
           shall
           endeavour
           to
           conform
           to
           the
           Philosophy
           ,
           
           which
           this
           Society
           doth
           profess
           ;
           which
           is
           ,
           
             Ratiocination
             ,
             grounded
             upon
             Experiment
             ,
             and
             the
             Common
             Notions
             of
             Sense
             .
          
           The
           former
           being
           ,
           without
           the
           latter
           ,
           too
           subtle
           and
           intangible
           ;
           the
           latter
           ,
           without
           the
           former
           ,
           too
           gross
           and
           unmanageable
           :
           but
           both
           together
           ,
           bearing
           a
           true
           analogy
           to
           our selves
           ;
           who
           are
           neither
           Angels
           ,
           nor
           meer
           Animals
           ,
           but
           Men.
           
        
         
           The
           Subject
           I
           have
           chosen
           
           to
           speak
           of
           ,
           is
           Mixture
           .
           Whereof
           ,
           that
           our
           Discourse
           may
           be
           the
           more
           consistent
           ,
           and
           the
           better
           intelligible
           ;
           all
           I
           have
           to
           say
           ,
           shall
           be
           ranged
           into
           this
           Method
           ;
           viz.
           
        
         
           1.
           
           First
           ,
           I
           shall
           give
           a
           brief
           account
           of
           the
           received
           Doctrine
           of
           Mixture
           .
        
         
           2
           :
           Next
           ,
           lay
           down
           some
           Propositions
           of
           the
           Principles
           whereof
           all
           Mixed
           Bodies
           consist
           .
        
         
           3.
           
           Then
           ,
           open
           the
           true
           
           Nature
           of
           Mixture
           ;
           or
           say
           ,
           What
           it
           is
           .
        
         
           4.
           
           And
           then
           enumerate
           the
           Causes
           of
           Mixture
           ;
           or
           say
           ,
           How
           it
           is
           made
           .
        
         
           5.
           
           Lastly
           ,
           I
           shall
           shew
           the
           Power
           of
           Mixture
           ;
           or
           ,
           What
           it
           can
           do
           .
        
         
           
             SECT
             .
             I.
             
          
           
             FIRST
             ,
             As
             to
             the
             received
             Doctrine
             of
             Mixture
             ;
             not
             to
             trouble
             you
             with
             tedious
             quotations
             of
             
             what
             
               Aristotle
               ,
               Galen
               ,
               Fernelius
               ,
               Scaliger
               ,
               Sennertus
               ,
               Riverius
               ,
            
             and
             others
             say
             hereof
             ;
             we
             may
             suppose
             the
             whole
             summed
             up
             in
             that
             Definition
             which
             Aristotle
             himself
             hath
             given
             of
             it
             ,
             and
             which
             the
             greater
             number
             of
             his
             Followers
             ,
             have
             almost
             religiously
             adhered
             to
             ;
             viz.
             that
             't
             is
             ,
             
               〈◊〉
               〈◊〉
               〈◊〉
               〈◊〉
               〈◊〉
            
             Lib.
             1.
             
               de
               Gener.
               &
               Corrupt
               .
               Cap.
               ult
               .
            
             that
             't
             is
             ,
             
               Miscibilium
               alteratorum
               
               unio
            
             .
             Which
             Definition
             ,
             as
             it
             is
             usually
             explicated
             ,
             is
             both
             Vnintelligible
             ,
             and
             Vnuseful
             .
          
           
             Two
             things
             are
             unintelligible
             ;
             what
             they
             mean
             by
             Alteration
             ;
             and
             what
             by
             Vnion
             .
             In
             this
             Alteration
             ,
             they
             say
             ,
             That
             the
             very
             Forms
             of
             the
             Elements
             are
             alter'd
             .
             And
             therefore
             lay
             it
             down
             for
             an
             
               Axiom
               ,
               Quòd
               in
               Mixto
               ,
               Formae
               Elementares
               tantum
               sint
               in
               potentia
               .
            
             But
             let
             us
             see
             the
             consequence
             .
             
             For
             if
             in
             a
             mixed
             body
             ,
             the
             Forms
             of
             the
             Elements
             are
             but
             
               in
               potentia
            
             ;
             then
             the
             Elements
             themselves
             are
             but
             
               in
               potentia
            
             :
             for
             we
             all
             say
             ,
             
               Forma
               dat
               esse
            
             .
             And
             if
             the
             
               Compounding
               Elements
            
             ,
             are
             only
             
               in
               potentia
            
             ;
             then
             the
             
               Compound
               ;
               Body
            
             it self
             can
             be
             only
             
               in
               potentia
            
             :
             yet
             to
             say
             it
             is
             no
             more
             ,
             is
             most
             absurd
             .
          
           
             As
             for
             the
             Vnion
             of
             Elements
             in
             a
             
               mixed
               Body
            
             ;
             they
             make
             it
             such
             ,
             as
             brings
             
             them
             at
             last
             to
             assert
             ,
             the
             Penetration
             of
             bodies
             ,
             and
             that
             the
             Vnion
             of
             
               mixed
               bodies
            
             is
             nothing
             else
             .
             For
             they
             say
             ,
             it
             is
             made
             in
             such
             sort
             ,
             that
             every
             particle
             of
             the
             
               mixed
               body
            
             ,
             partaketh
             of
             the
             Nature
             of
             the
             whole
             .
             Which
             Nature
             ,
             ariseth
             from
             the
             contemperated
             Qualities
             of
             the
             four
             Elements
             .
             Whence
             they
             conclude
             ,
             That
             every
             particle
             of
             the
             
               mixed
               body
            
             ,
             containeth
             in
             it self
             all
             the
             four
             Elements
             .
             
             Which
             is
             plainly
             to
             assert
             a
             penetration
             of
             bodies
             .
             For
             every
             Element
             is
             ,
             at
             least
             ,
             one
             particle
             ;
             if
             therefore
             every
             particle
             of
             the
             mixed
             body
             ,
             containeth
             four
             Elements
             ;
             then
             four
             particles
             ,
             are
             but
             one
             .
             I
             conclude
             then
             ,
             That
             the
             received
             Doctrine
             of
             Mixture
             ,
             is
             Vnintelligible
             .
          
           
             Whence
             it
             follows
             ,
             That
             it
             is
             also
             Barren
             and
             Vnuseful
             .
             For
             who
             can
             make
             any
             use
             of
             that
             which
             he
             
             understandeth
             not
             ?
             And
             the
             experience
             of
             so
             many
             years
             ,
             wherein
             it
             hath
             been
             ventilated
             by
             the
             disputes
             of
             men
             ,
             proveth
             as
             much
             :
             Scarce
             any
             of
             them
             ,
             except
             the
             Learned
             Sennertus
             ,
             daring
             to
             venture
             upon
             Experiment
             ,
             for
             fear
             they
             should
             come
             to
             understand
             themselves
             .
          
           
             It
             is
             confessed
             ,
             that
             many
             gallant
             things
             have
             been
             found
             out
             by
             artificial
             Mixture
             .
             But
             no
             thanks
             to
             this
             
             Definition
             of
             it
             .
             For
             as
             an
             Ignorant
             Person
             may
             make
             bad
             Work
             ,
             and
             a
             good
             Rule
             be
             never
             the
             worse
             ;
             so
             an
             Ingenious
             Person
             may
             make
             good
             Work
             ,
             and
             a
             bad
             Rule
             be
             never
             the
             better
             .
             The
             question
             is
             not
             ,
             what
             have
             men
             done
             ?
             but
             what
             have
             they
             done
             upon
             this
             foundation
             ,
             
               Quòd
               Mixtio
               sit
               miscibilium
               alteratorum
               unio
               .
            
             Had
             this
             ever
             taught
             them
             to
             do
             any
             thing
             ,
             even
             so
             much
             as
             to
             make
             the
             Ink
             
             wherewith
             they
             have
             wrote
             all
             their
             Disputes
             ;
             I
             confess
             ,
             they
             would
             have
             had
             something
             to
             shew
             for
             it
             .
             But
             the
             truth
             is
             ,
             their
             notions
             of
             Mixture
             ,
             have
             been
             so
             far
             from
             doing
             us
             any
             good
             ,
             that
             they
             have
             done
             us
             much
             harm
             :
             being
             ,
             through
             their
             seeming
             subtlety
             ,
             but
             real
             absurdity
             ,
             as
             so
             many
             phantastick
             Spectrums
             ,
             serving
             only
             to
             affright
             men
             from
             coming
             near
             them
             ,
             or
             the
             Subject
             whereof
             they
             treat
             .
          
           
           
             I
             shall
             therefore
             endeavour
             to
             open
             the
             true
             Nature
             of
             Mixture
             .
             And
             I
             shall
             build
             my
             Doctrine
             upon
             the
             
               Common
               Notions
            
             of
             Sense
             :
             which
             none
             can
             deny
             ;
             and
             every
             one
             may
             conceive
             of
             .
             In
             order
             to
             which
             ,
             I
             shall
             take
             leave
             to
             lay
             down
             some
             Propositions
             ,
             of
             the
             Principles
             of
             all
             
               mixed
               bodies
            
             .
          
        
         
           
           
             SECT
             .
             II.
             
          
           
             1.
             
             AND
             first
             ,
             by
             Principles
             ,
             I
             mean
             Atomes
             ,
             or
             certain
             sorts
             of
             Atomes
             ,
             or
             of
             the
             simplest
             of
             Bodies
             .
             For
             otherwise
             they
             would
             not
             be
             Principles
             ;
             for
             a
             
               compounded
               Principle
            
             ,
             in
             strict
             speaking
             ,
             is
             a
             contradiction
             .
             Even
             as
             
               fives
               ,
               threes
            
             ,
             or
             twos
             ,
             are
             not
             the
             Principles
             of
             Number
             ,
             but
             Vnites
             .
          
           
             2.
             
             Whence
             ,
             secondly
             ,
             
             it
             follows
             ,
             that
             they
             are
             also
             Indivisible
             .
             Not
             Mathematically
             ;
             for
             the
             Atomes
             of
             every
             Principle
             have
             their
             dimensions
             .
             But
             Physically
             ;
             and
             so
             ,
             what
             is
             but
             one
             ,
             cannot
             be
             made
             two
             .
          
           
             If
             it
             be
             asked
             ,
             Whether
             a
             Stick
             cut
             with
             a
             Knife
             ,
             be
             not
             of
             one
             ,
             made
             two
             ?
             I
             say
             ,
             that
             a
             Stick
             ,
             is
             not
             one
             body
             ,
             but
             
               many
               millions
            
             of
             bodies
             ;
             that
             is
             ,
             of
             Atomes
             ;
             not
             any
             one
             whereof
             is
             divided
             within
             it self
             ,
             
             but
             only
             they
             are
             separated
             each
             from
             other
             ,
             where
             the
             Knife
             forceth
             its
             way
             .
             As
             in
             the
             drawing
             of
             a
             mans
             Finger
             through
             an
             heap
             of
             Corn
             ;
             there
             is
             no
             division
             made
             in
             any
             one
             Grain
             ,
             but
             only
             a
             separation
             of
             them
             one
             from
             another
             ,
             all
             remaining
             still
             in
             themselves
             entire
             .
             I
             say
             therefore
             ,
             that
             what
             is
             
               physically
               one
            
             ,
             is
             also
             most
             firm
             ,
             and
             indivisible
             ;
             that
             is
             ,
             impenetrable
             :
             for
             penetration
             is
             
             but
             the
             separation
             ,
             not
             the
             division
             of
             Atomes
             .
          
           
             3.
             
             Hence
             ,
             thirdly
             ,
             they
             are
             also
             Immutable
             .
             For
             that
             which
             cannot
             be
             divided
             ,
             cannot
             be
             chang'd
             .
             So
             that
             of
             the
             whole
             World
             of
             Atomes
             ,
             not
             any
             one
             hath
             ever
             suffer'd
             ,
             or
             can
             suffer
             the
             least
             mutation
             .
          
           
             Hereupon
             is
             grounded
             the
             Constancy
             of
             Causes
             and
             Effects
             .
             So
             that
             ,
             in
             all
             Generations
             ,
             it
             is
             not
             less
             certain
             ,
             that
             the
             self
             same
             
             Principle
             is
             still
             propagated
             from
             the
             same
             ;
             than
             ,
             that
             Man
             is
             from
             Man.
             Wherefore
             ,
             Compounded
             bodies
             are
             generated
             ;
             but
             Principles
             are
             not
             ,
             but
             only
             propagated
             ;
             that
             is
             ,
             in
             every
             Generation
             ,
             they
             pass
             ,
             in
             themselves
             unaltered
             ,
             from
             one
             body
             ,
             into
             another
             .
          
           
             4.
             
             If
             Principles
             ,
             or
             Atomes
             are
             all
             Immutable
             ;
             it
             again
             follows
             ,
             That
             they
             are
             of
             
               divers
               kinds
            
             .
             For
             one
             and
             the
             same
             Principle
             ,
             
             or
             kind
             of
             Atomes
             ,
             will
             still
             make
             the
             same
             thing
             ,
             and
             have
             the
             
               same
               effect
            
             :
             so
             that
             all
             Generations
             would
             then
             be
             the
             same
             .
             Wherefore
             ,
             since
             they
             are
             Immutable
             ,
             they
             must
             be
             divers
             .
          
           
             5.
             
             This
             diversity
             ,
             for
             the
             same
             reason
             ,
             is
             not
             small
             ,
             but
             very
             numerous
             .
             For
             as
             the
             World
             ,
             taken
             together
             ,
             is
             
               Natures
               Shop
            
             ;
             so
             the
             Principles
             of
             Things
             ,
             are
             her
             Tools
             ,
             and
             her
             Materials
             .
             
             Wherefore
             ,
             as
             it
             speaks
             the
             goodness
             of
             a
             Shop
             ;
             so
             the
             perfection
             of
             the
             Vniverse
             ,
             That
             it
             is
             furnished
             with
             many
             Tools
             wherewith
             ,
             and
             many
             Materials
             whereupon
             to
             work
             .
             And
             consequently
             ,
             that
             Philosophy
             beareth
             best
             it
             s
             own
             name
             ;
             which
             doth
             not
             strain
             all
             to
             two
             or
             three
             Principles
             ,
             like
             two
             or
             three
             Bells
             in
             a
             Steeple
             ,
             making
             a
             pittiful
             Chime
             :
             but
             tryeth
             to
             rise
             up
             to
             Natures
             
             own
             number
             ,
             and
             so
             to
             ring
             all
             the
             changes
             in
             the
             world
             .
          
           
             6.
             
             Yet
             doth
             not
             this
             vast
             Diversity
             ,
             take
             away
             the
             Regiment
             and
             Subordination
             ,
             of
             Principles
             .
             There
             being
             a
             certain
             lesser
             number
             of
             them
             ,
             which
             either
             by
             their
             greater
             quantity
             ,
             or
             other
             ways
             ,
             have
             Rule
             and
             Dominion
             ,
             in
             their
             several
             Orders
             ,
             over
             all
             the
             rest
             .
             For
             where-ever
             the
             Subject
             is
             
               Multitude
               ,
               Order
            
             
             is
             part
             of
             its
             Perfection
             .
             For
             Order
             is
             Proportion
             .
             And
             how
             can
             Nature
             be
             imagin'd
             to
             hold
             Proportion
             in
             all
             things
             else
             ,
             and
             not
             here
             ?
             Wherefore
             ,
             as
             certainly
             ,
             as
             Order
             and
             Government
             are
             in
             all
             the
             parts
             of
             the
             Rational
             ;
             so
             certainly
             ,
             of
             the
             
               Material
               World.
            
             
          
           
             Whence
             it
             is
             ,
             That
             although
             the
             Species
             of
             Principles
             be
             very
             numerous
             ;
             yet
             the
             Principles
             called
             
               Galenical
               ,
               Chymical
            
             ,
             or
             any
             
             others
             ,
             which
             do
             any
             way
             fall
             under
             the
             notice
             of
             Sense
             ,
             are
             notwithstanding
             reduceable
             to
             a
             
               smaller
               number
               :
               viz.
            
             according
             to
             the
             number
             of
             
               Predominant
               Principles
            
             in
             Nature
             ;
             or
             ,
             at
             least
             ,
             in
             this
             part
             of
             the
             Vniverse
             which
             is
             
               near
               and
               round
               about
               us
            
             .
             To
             the
             Power
             and
             Empire
             whereof
             ,
             all
             other
             Principles
             do
             submit
             .
             Which
             Submission
             ,
             is
             not
             the
             quitting
             of
             their
             own
             Nature
             ;
             but
             only
             their
             
             appearance
             under
             the
             external
             Face
             or
             Habit
             of
             the
             said
             
               Predominant
               Principles
            
             .
          
           
             7.
             
             As
             there
             can
             be
             no
             Order
             of
             Principles
             ,
             without
             Diversity
             ;
             so
             no
             Diversity
             ,
             but
             what
             is
             originally
             made
             by
             these
             two
             ways
             ;
             sc.
             by
             Size
             and
             Figure
             .
             By
             these
             they
             may
             be
             exceeding
             different
             :
             and
             all
             other
             Properties
             besides
             ,
             whereby
             they
             differ
             ,
             must
             be
             dependent
             upon
             
               these
               two
            
             .
          
           
           
             8.
             
             Nor
             therefore
             ,
             can
             they
             be
             of
             any
             other
             Figures
             ,
             than
             what
             are
             Regular
             .
             For
             
               Regularity
               ,
               is
               a
               Similitude
               continu'd
               .
            
             Since
             therefore
             all
             kinds
             of
             Atomes
             are
             divers
             only
             by
             their
             Size
             and
             Figure
             ;
             if
             the
             self
             same
             Size
             and
             Figure
             were
             not
             common
             to
             a
             certain
             number
             of
             Atomes
             ,
             they
             could
             not
             be
             said
             to
             be
             of
             any
             
               one
               kind
            
             :
             and
             consequently
             ,
             if
             there
             were
             no
             Similitude
             of
             Atomes
             ,
             
             there
             could
             be
             no
             Distinction
             of
             Principles
             .
          
           
             9.
             
             Hence
             also
             ,
             these
             two
             Modes
             of
             
               Atomes
               ,
               viz.
            
             their
             Size
             and
             Figure
             ,
             are
             the
             true
             ,
             and
             only
             
               original
               Qualities
            
             of
             Atomes
             .
             That
             is
             ,
             an
             Atome
             is
             such
             or
             such
             ,
             because
             it
             is
             of
             such
             a
             certain
             Size
             and
             Figure
             .
          
           
             10.
             
             Lastly
             ,
             As
             these
             two
             Modes
             ,
             taken
             severally
             ,
             are
             the
             Qualities
             of
             an
             Atome
             :
             so
             consider'd
             together
             ,
             they
             are
             its
             Form.
             
             A
             
               substantial
               Form
            
             of
             a
             Body
             ,
             being
             an
             unintelligible
             thing
             .
             I
             say
             of
             a
             Body
             ;
             for
             although
             the
             
               Rational
               Soul
            
             be
             a
             
               substantial
               Form
            
             ,
             yet
             is
             it
             the
             Form
             of
             a
             Man
             ,
             and
             not
             of
             a
             Body
             .
             For
             the
             Form
             of
             a
             Body
             ,
             we
             can
             conceive
             of
             no
             otherwise
             ,
             then
             as
             of
             the
             Modification
             of
             a
             Body
             ,
             or
             a
             Complexion
             of
             all
             the
             Modes
             of
             a
             Body
             .
             Which
             also
             agrees
             with
             that
             Definition
             of
             a
             Form
             ,
             which
             amongst
             the
             
             
               Peripatetick
               Philosophers
            
             is
             well
             enough
             accepted
             ,
             
               viz.
               Quod
               sit
               ,
               Ratio
               ejus
               Essentiae
               ,
               quae
               cuique
               Rei
               competit
               .
            
             Which
             Ratio
             ,
             if
             it
             be
             referred
             to
             a
             Body
             ,
             what
             is
             it
             but
             the
             Modification
             of
             that
             Body
             ?
             Having
             thus
             proposed
             a
             Summary
             of
             my
             Thoughts
             about
             Principles
             ;
             I
             shall
             next
             proceed
             to
             shew
             what
             their
             Mixture
             is
             .
          
        
         
           
           
             SECT
             .
             III.
             
          
           
             AND
             first
             of
             all
             ,
             from
             the
             Premisses
             ,
             we
             arrive
             at
             this
             
               Conclusion
               ;
               sc.
            
             That
             the
             Formation
             and
             Transformation
             of
             all
             Bodies
             ,
             can
             be
             nothing
             else
             ,
             but
             the
             Mixture
             of
             Bodies
             .
             For
             all
             Principles
             are
             immutable
             ;
             as
             we
             have
             above
             proved
             :
             and
             therefore
             not
             
               generable
               ,
               formable
            
             ,
             or
             transformable
             .
             And
             the
             Forms
             of
             
             Principles
             ,
             being
             but
             their
             Modes
             ,
             are
             also
             immutable
             .
             So
             that
             the
             whole
             Business
             of
             the
             
               Material
               World
            
             ,
             is
             nothing
             else
             ,
             but
             Mixture
             .
          
           
             Again
             ,
             as
             Nature
             worketh
             every
             where
             only
             by
             Mixture
             ;
             so
             is
             this
             Mixture
             every
             where
             but
             
               one
               thing
            
             ,
             and
             can
             be
             but
             one
             .
             For
             whether
             it
             be
             the
             Mixture
             of
             great
             Bodies
             ,
             or
             of
             small
             ;
             of
             Compounds
             ,
             or
             of
             Atomes
             ;
             it
             is
             every
             where
             Mixture
             ,
             
             and
             the
             Mixture
             of
             Bodies
             .
             Wherefore
             ,
             Mixture
             is
             either
             an
             
               intelligible
               Affection
            
             of
             all
             Bodies
             ,
             or
             of
             none
             ;
             which
             latter
             ,
             no
             man
             will
             say
             .
             As
             many
             wayes
             ,
             therefore
             ,
             as
             we
             can
             see
             ,
             or
             conceive
             the
             Mixture
             of
             any
             gross
             Bodies
             ,
             which
             we
             hold
             in
             our
             hand
             ;
             so
             many
             ways
             ,
             we
             may
             ,
             of
             the
             
               subtilest
               Mixtures
            
             which
             Nature
             maketh
             ,
             or
             of
             Atomes
             themselves
             ;
             and
             no
             other
             wayes
             .
          
           
           
             Now
             all
             the
             wayes
             we
             can
             distinguish
             Mixture
             by
             ,
             are
             in
             general
             these
             two
             ;
             either
             in
             respect
             of
             the
             
               Bodies
               Mixed
            
             ,
             or
             else
             of
             the
             Modes
             of
             the
             Mixture
             it self
             .
          
           
             In
             respect
             of
             the
             
               Bodies
               Mixed
               ,
               Mixture
            
             is
             distinguished
             also
             two
             ways
             ;
             viz.
             by
             Conjugation
             ,
             and
             by
             Proportion
             .
          
           
             By
             Conjugation
             ,
             I
             mean
             ,
             a
             
               Certain
               Mixture
               of
               some
               such
               Principles
               ,
               and
               not
               of
               
               others
               .
            
             Which
             is
             threefold
             .
          
           
             First
             ,
             As
             to
             Number
             :
             as
             when
             one
             Body
             may
             be
             compounded
             of
             
               two
               Principles
            
             ,
             another
             of
             three
             ,
             a
             third
             of
             four
             ,
             a
             fourth
             of
             five
             ,
             and
             so
             on
             .
          
           
             Secondly
             ,
             As
             to
             Kind
             :
             where
             ,
             though
             there
             be
             a
             conjunction
             of
             the
             same
             Number
             ,
             yet
             not
             of
             the
             same
             Kind
             .
          
           
             Thirdly
             ,
             When
             they
             differ
             from
             one
             another
             both
             
             in
             Number
             and
             Kind
             .
          
           
             So
             many
             ways
             the
             Principles
             of
             Bodies
             may
             be
             conceived
             to
             be
             Conjugated
             ;
             and
             therefore
             are
             :
             for
             here
             ,
             that
             which
             may
             be
             ,
             is
             .
             The
             Consequence
             is
             clear
             .
             For
             
               first
               ,
               Nature
            
             hath
             various
             Materials
             wherewith
             to
             make
             these
             Mixtures
             ;
             as
             we
             have
             shew'd
             .
             Secondly
             ,
             By
             these
             Mixtures
             she
             may
             ,
             and
             without
             the
             concurrence
             of
             any
             imaginary
             
               Forms
               ,
               
               must
            
             produce
             all
             the
             varieties
             in
             the
             
               material
               world
            
             ;
             as
             likewise
             hath
             been
             said
             .
             Wherefore
             ,
             since
             all
             imaginable
             
               Mixtures
               may
            
             be
             made
             ,
             and
             that
             to
             
               some
               purpose
            
             ;
             if
             they
             should
             not
             be
             
               so
               ,
               Nature
            
             would
             be
             Imperfect
             :
             because
             we
             our selves
             can
             think
             ,
             how
             she
             might
             put
             her
             Materials
             to
             further
             use
             ,
             then
             so
             she
             would
             do
             .
          
           
             To
             think
             ,
             therefore
             ,
             that
             all
             kinds
             of
             Principles
             ,
             
             or
             all
             Elements
             go
             to
             make
             up
             every
             
               Compounded
               Body
            
             ;
             is
             a
             conceit
             ,
             no
             more
             to
             be
             credited
             ,
             then
             one
             that
             should
             tell
             us
             ,
             all
             kind
             of
             Wheels
             and
             other
             parts
             of
             a
             Watch
             ,
             were
             put
             into
             a
             Clock
             ;
             or
             that
             there
             were
             no
             other
             Materials
             wherewith
             to
             build
             an
             House
             ,
             then
             for
             a
             Tent
             or
             a
             Ship.
             For
             why
             should
             Nature
             ,
             the
             great
             Artificer
             by
             which
             all
             
               perfect
               Works
            
             are
             made
             ,
             be
             feigned
             to
             cram
             and
             
             ram
             
               all
               things
               into
               one
            
             ,
             which
             we
             our selves
             look
             upon
             as
             absurd
             ?
          
           
             Secondly
             ,
             The
             Mixture
             of
             Principles
             is
             diversifi'd
             ,
             as
             by
             Conjugation
             ,
             so
             also
             by
             Proportion
             .
             That
             is
             ,
             by
             the
             divers
             Quantities
             ,
             of
             the
             several
             Principles
             or
             
               Parts
               mixed
            
             together
             .
          
           
             As
             if
             the
             quantity
             of
             one
             ,
             were
             as
             five
             to
             ten
             ;
             of
             a
             second
             ,
             as
             five
             to
             fifteen
             ;
             of
             a
             third
             ,
             as
             five
             to
             twenty
             ,
             &c.
             
          
           
           
             Or
             if
             that
             of
             one
             ,
             be
             as
             five
             to
             six
             ;
             of
             a
             second
             ,
             as
             six
             to
             seven
             ;
             of
             a
             third
             ,
             as
             seven
             to
             eight
             .
             By
             which
             ,
             and
             by
             other
             
               Proportions
               ,
               Mixture
            
             may
             be
             varied
             innumerable
             ways
             .
          
           
             Again
             ,
             As
             Mixture
             is
             varied
             with
             respect
             to
             the
             
               Bodies
               Mixed
            
             ;
             so
             likewise
             in
             respect
             of
             the
             Mixture
             it self
             ,
             which
             I
             call
             the
             Location
             of
             Principles
             ,
             or
             the
             Modes
             of
             their
             Conjunction
             .
             Which
             may
             be
             various
             ,
             
             as
             well
             as
             their
             Conjugation
             and
             Proportion
             .
             Yet
             are
             they
             all
             reduceable
             unto
             two
             general
             Modes
             :
             all
             Bodies
             ,
             and
             therefore
             all
             Principles
             ,
             being
             Mixed
             ,
             either
             by
             Mediation
             ,
             or
             by
             Contact
             .
          
           
             Now
             all
             Contact
             ,
             whether
             of
             Compounds
             ,
             or
             of
             Atomes
             ,
             can
             be
             no
             other
             way
             ,
             then
             such
             as
             is
             answerable
             to
             their
             Figures
             .
             Whereof
             ,
             therefore
             ,
             we
             can
             conceive
             but
             three
             general
             ways
             ,
             viz.
             
          
           
           
             First
             ,
             By
             Contact
             in
             a
             Point
             ,
             or
             some
             
               smaller
               part
            
             :
             as
             when
             
               two
               Atomes
            
             meet
             ,
             which
             are
             globular
             or
             otherwise
             gibbose
             .
          
           
             Secondly
             ,
             By
             Contact
             in
             a
             Plain
             :
             as
             in
             the
             conjunction
             of
             the
             sides
             of
             Triangular
             or
             
               Quadrangular
               Atomes
            
             ,
             or
             otherwise
             flat
             .
          
           
             Thirdly
             ,
             By
             Contact
             in
             a
             Concave
             :
             as
             when
             one
             Atome
             is
             admitted
             into
             the
             Concave
             or
             hole
             of
             another
             ;
             as
             a
             Spigot
             is
             into
             a
             Fosset
             .
          
           
           
             The
             first
             may
             be
             called
             ,
             Apposition
             ;
             the
             
               second
               ,
               Application
            
             ;
             the
             
               third
               ,
               Reception
            
             or
             Intrusion
             .
          
           
             In
             the
             
               two
               last
            
             wayes
             ,
             Atomes
             may
             be
             joyned
             by
             Mediation
             ;
             but
             best
             of
             all
             the
             last
             .
             As
             when
             the
             
               two
               extreams
            
             of
             one
             Atome
             are
             received
             into
             the
             Concaves
             or
             the
             holes
             of
             two
             others
             .
          
           
             And
             these
             are
             all
             the
             general
             ways
             ,
             whereby
             we
             can
             conceive
             Bodies
             to
             be
             
             Mixed
             together
             ;
             sc.
             by
             their
             various
             
               Conjugation
               ,
               Proportion
            
             ,
             and
             Location
             .
          
           
             So
             that
             the
             Composition
             of
             Atomes
             ,
             in
             Bodies
             ;
             is
             like
             that
             of
             Letters
             ,
             in
             Words
             .
             What
             a
             Thunder-clap
             would
             such
             a
             Word
             be
             ,
             as
             wherein
             all
             the
             four
             and
             twenty
             Letters
             were
             pack'd
             up
             ?
             One
             therefore
             is
             compounded
             of
             more
             ,
             another
             of
             fewer
             ;
             this
             of
             some
             ,
             and
             that
             of
             others
             :
             and
             both
             the
             
               Conjugation
               ,
               Proportion
            
             ,
             
             and
             Location
             of
             Letters
             is
             varied
             in
             every
             Word
             :
             whereby
             ,
             we
             have
             many
             thousands
             of
             
               differing
               Words
            
             ,
             without
             any
             alteration
             at
             all
             ,
             in
             the
             
               Letters
               themselves
            
             ;
             and
             might
             have
             ten
             times
             as
             many
             more
             .
             In
             like
             manner
             ,
             therefore
             ,
             or
             in
             the
             self
             same
             analogous
             way
             ,
             as
             the
             Letters
             of
             the
             Alphabet
             ,
             are
             the
             Principles
             of
             Words
             ;
             so
             Principles
             ,
             are
             the
             Alphabet
             of
             Things
             .
          
           
           
             What
             we
             have
             said
             of
             Principles
             ;
             and
             of
             Mixture
             as
             consequent
             thereupon
             ;
             may
             be
             a
             foundation
             for
             an
             intelligible
             account
             ,
             of
             the
             Nature
             and
             Cause
             of
             most
             of
             the
             Intrinsick
             Properties
             ,
             and
             Qualities
             of
             Bodies
             :
             as
             of
             
               Gravity
               ,
               Levity
               ,
               Fixity
               ,
               Fluidity
               ,
               Angularity
               ,
               Roundness
               ,
               Heat
               ,
               Cold
               ,
               Blackness
               ,
               Whiteness
               ,
               Sowerness
               ,
               Sweetness
               ,
               Fragrancy
               ,
               Fetidness
               ,
            
             and
             very
             many
             more
             .
             I
             say
             an
             intelligible
             account
             ;
             
             sc.
             such
             as
             is
             grounded
             upon
             the
             Notions
             of
             Sense
             ,
             and
             made
             out
             Mechanically
             .
             But
             the
             exemplification
             hereof
             ,
             being
             too
             large
             a
             field
             for
             this
             ,
             or
             any
             one
             Lecture
             ,
             I
             shall
             ,
             before
             I
             come
             to
             the
             Causes
             of
             Mixture
             ,
             only
             deduce
             from
             the
             Premisses
             ,
             these
             following
             Corollaries
             .
          
           
             1.
             
             First
             ,
             That
             there
             is
             no
             alteration
             of
             Principles
             or
             of
             Elements
             ,
             in
             the
             most
             
               perfect
               Mixture
            
             of
             Bodies
             .
             
             It
             cannot
             be
             ;
             for
             Principles
             are
             Immutable
             ,
             as
             we
             have
             said
             .
             And
             if
             it
             could
             be
             ,
             yet
             it
             
               needeth
               not
            
             to
             be
             :
             for
             they
             are
             also
             many
             ,
             and
             
               compoundable
               infinite
            
             ways
             ;
             as
             hath
             been
             shewed
             .
             So
             that
             we
             have
             no
             need
             to
             perplex
             our selves
             with
             any
             of
             those
             difficulties
             ,
             that
             arise
             from
             the
             Doctrine
             of
             the
             Alteration
             of
             Elements
             .
             The
             ground
             of
             which
             conceit
             ,
             is
             that
             ,
             of
             there
             being
             but
             four
             Elements
             ,
             and
             
             that
             all
             the
             Elements
             must
             needs
             be
             in
             every
             Body
             .
             And
             so
             men
             being
             puzled
             ,
             how
             from
             thence
             to
             make
             out
             the
             infinite
             variety
             of
             Bodies
             ,
             they
             feigned
             them
             to
             be
             alterable
             ,
             and
             alter'd
             ,
             upon
             every
             
               perfect
               Mixture
            
             .
             Not
             considering
             ,
             that
             if
             their
             four
             Elements
             be
             alterable
             ;
             as
             few
             as
             they
             are
             ,
             no
             fewer
             then
             three
             of
             them
             may
             be
             spared
             :
             for
             
               one
               Element
            
             ,
             if
             alterable
             ,
             may
             be
             made
             any
             .
          
           
           
             2.
             
             Hence
             ,
             secondly
             ,
             may
             be
             solved
             that
             great
             Dispute
             ,
             Whether
             such
             as
             we
             call
             
               Lixivial
               Salts
            
             ,
             are
             made
             by
             the
             fire
             ?
          
           
             For
             first
             ,
             No
             Principle
             is
             made
             by
             the
             fire
             :
             all
             Principles
             being
             unalterable
             ;
             and
             therefore
             unmakeable
             .
          
           
             Secondly
             ,
             We
             must
             therefore
             distinguish
             betwixt
             the
             Principle
             ,
             and
             the
             Modification
             of
             a
             Principle
             ;
             or
             its
             various
             Mixture
             with
             
             other
             Principles
             ,
             whence
             it
             may
             receive
             a
             various
             denomination
             .
          
           
             Wherefore
             ,
             a
             
               Lixivial
               Salt
               ,
               qua
               Lixivial
            
             ,
             is
             certainly
             made
             by
             the
             fire
             .
             But
             
               quatenus
               Salt
            
             ,
             it
             is
             not
             :
             that
             Principle
             being
             extractable
             out
             of
             most
             Bodies
             ;
             and
             by
             divers
             other
             ways
             ,
             then
             by
             the
             fire
             .
             For
             whether
             you
             Calcine
             a
             body
             ,
             or
             Ferment
             it
             ,
             (
             after
             the
             manner
             shew'd
             by
             the
             diligent
             and
             
               curious
               Improver
            
             of
             Chymical
             Knowledg
             ,
             
               Dr.
               
               Daniel
               Coxe
            
             )
             or
             else
             putrifie
             it
             under
             ground
             ,
             or
             drown
             it
             in
             the
             Sea
             ;
             it
             still
             yieldeth
             
               some
               kind
            
             of
             Salt.
             All
             which
             Salts
             are
             made
             ,
             not
             by
             making
             the
             
               Saline
               Principle
            
             ;
             but
             only
             by
             its
             being
             
               variously
               Mixed
            
             ,
             upon
             those
             various
             ways
             of
             the
             Solution
             of
             Bodies
             ,
             with
             other
             Principles
             :
             from
             which
             its
             
               various
               Mixture
            
             ,
             it
             receives
             the
             
               various
               Denominations
            
             ,
             of
             
               Marine
               ,
               Nitrous
               ,
               Volatile
            
             ,
             or
             Lixivial
             .
          
           
             3.
             
             Hence
             ,
             thirdly
             ,
             the
             most
             
             
               perfect
               Mixture
            
             of
             Bodies
             ,
             can
             go
             no
             higher
             then
             Contact
             .
             For
             all
             Principles
             are
             unalterable
             ;
             and
             all
             Matter
             is
             impenetrable
             ;
             as
             hath
             been
             said
             .
             In
             the
             most
             visible
             and
             
               laxe
               Mixture
            
             ,
             there
             is
             Contact
             ;
             and
             in
             the
             most
             subtile
             and
             perfect
             ,
             as
             in
             Generation
             it self
             ,
             there
             is
             
               nothing
               more
            
             .
          
           
             4.
             
             Hence
             ,
             fourthly
             ,
             we
             easily
             understand
             ,
             how
             divers
             of
             the
             same
             Principles
             ,
             belonging
             both
             to
             Vegetables
             and
             many
             other
             Bodies
             ,
             are
             
             also
             actually
             existent
             in
             the
             Body
             of
             Man.
             Because
             even
             in
             Generation
             ,
             or
             Transmutation
             ,
             the
             Principles
             which
             are
             translated
             from
             one
             body
             to
             another
             ,
             as
             from
             a
             Vegetable
             to
             an
             Animal
             ,
             are
             not
             in
             the
             least
             alter'd
             in
             themselves
             ;
             but
             only
             their
             Mixture
             ,
             that
             is
             ,
             their
             
               Conjugation
               ,
               Proportion
            
             ,
             and
             Location
             ,
             is
             varied
             .
          
           
             5.
             
             Hence
             also
             the
             difference
             of
             Mixture
             ,
             arising
             from
             the
             difference
             of
             Contact
             ,
             is
             intelligible
             ;
             sc.
             as
             to
             
             those
             
               three
               degrees
               ,
               Congregation
               ,
               Vnion
               ,
               and
               Concentration
               .
            
          
           
             Congregation
             ,
             and
             
               Inconsistent
               Mixture
            
             ,
             is
             when
             the
             several
             Atomes
             touch
             but
             in
             a
             Point
             ,
             or
             
               smaller
               part
            
             .
             In
             which
             manner
             ,
             I
             have
             divers
             arguments
             ,
             inducing
             me
             to
             believe
             the
             Atomes
             of
             all
             
               Fluid
               Bodies
               ,
               qua
               Fluid
            
             ,
             do
             touch
             ;
             and
             in
             
               no
               other
            
             .
          
           
             Vnion
             ,
             is
             when
             they
             touch
             in
             a
             Plain
             .
             As
             in
             the
             Crystals
             and
             Shootings
             of
             all
             Salts
             ,
             and
             other
             like
             Bodies
             .
             For
             if
             
             we
             pursue
             their
             divided
             ,
             and
             subdivided
             parts
             ,
             with
             our
             eye
             ,
             as
             far
             as
             we
             can
             ;
             they
             still
             terminate
             ,
             on
             every
             side
             ,
             in
             Plains
             .
             Wherefore
             ,
             't
             is
             intelligible
             .
             That
             their
             very
             Atomes
             do
             also
             terminate
             ,
             and
             therefore
             touch
             ,
             in
             Plain
             .
          
           
             Concentration
             ,
             is
             when
             two
             ,
             or
             more
             Atomes
             touch
             by
             Reception
             and
             Intrusion
             of
             one
             into
             another
             :
             which
             is
             the
             closest
             ,
             and
             
               firmest
               Mixture
            
             of
             all
             ;
             as
             in
             any
             
               fixed
               ,
               
               unodorable
            
             ,
             or
             untastable
             body
             :
             the
             Atomes
             of
             such
             bodies
             ,
             being
             not
             able
             to
             make
             any
             Smell
             or
             Tast
             ,
             unless
             they
             were
             first
             dissolved
             ;
             that
             is
             to
             say
             ,
             unpin'd
             one
             from
             another
             .
          
           
             6.
             
             Hence
             ,
             sixthly
             ,
             we
             understand
             ,
             how
             in
             some
             cases
             ,
             there
             seemeth
             to
             be
             a
             Penetration
             of
             Bodies
             ;
             and
             in
             what
             sense
             it
             may
             be
             admitted
             :
             viz.
             if
             we
             will
             mean
             no
             more
             by
             Penetration
             ,
             but
             Intrusion
             .
             For
             the
             Intrusion
             of
             one
             Atome
             
             into
             the
             Concave
             or
             hole
             of
             another
             ,
             is
             a
             kind
             of
             Penetration
             ;
             whereby
             they
             take
             up
             less
             room
             in
             the
             mixed
             Body
             ,
             then
             they
             would
             do
             by
             any
             other
             way
             of
             Contact
             .
             As
             a
             naked
             knife
             and
             its
             sheath
             ,
             take
             up
             almost
             double
             room
             ,
             to
             what
             they
             do
             ,
             when
             the
             knife
             is
             sheathed
             .
          
           
             Whence
             we
             may
             assign
             the
             reason
             ,
             Why
             many
             Liquors
             being
             mixed
             ;
             take
             up
             less
             room
             or
             space
             ,
             then
             they
             did
             
             apart
             ;
             as
             the
             very
             Ingenious
             M.
             Hook
             maketh
             it
             to
             appear
             by
             Experiment
             that
             they
             do
             .
             I
             say
             the
             plain
             reason
             hereof
             ,
             or
             at
             least
             one
             reason
             ,
             is
             the
             Intrusion
             of
             many
             of
             their
             Atomes
             one
             into
             another
             .
             Which
             yet
             is
             not
             a
             Penetration
             of
             Bodies
             strictly
             so
             called
             .
          
           
             7.
             
             If
             all
             that
             
               Nature
               maketh
            
             ,
             be
             but
             Mixture
             ;
             and
             all
             this
             Mixture
             be
             but
             Contact
             :
             't
             is
             then
             evident
             ,
             That
             Natural
             and
             Artificial
             Mixture
             ,
             
             are
             the
             same
             .
             And
             all
             those
             
               seeming
               subtilties
            
             whereby
             Philosophers
             have
             gone
             about
             to
             distinguish
             them
             ;
             have
             been
             but
             so
             many
             Scar-crows
             ,
             to
             affright
             Men
             from
             the
             Imitation
             of
             Nature
             .
          
           
             8.
             
             Lastly
             ,
             Hence
             it
             follows
             ,
             That
             Art
             it self
             may
             go
             far
             in
             doing
             what
             Nature
             doth
             .
             And
             who
             can
             say
             ,
             how
             far
             ?
             For
             we
             have
             nothing
             to
             Make
             ;
             but
             only
             to
             Mix
             those
             Materials
             ,
             which
             are
             already
             made
             to
             our
             
             hands
             .
             Even
             Nature
             her self
             ,
             as
             hath
             been
             said
             ,
             Maketh
             nothing
             new
             ;
             but
             only
             Mixeth
             all
             things
             .
             So
             far
             ,
             therefore
             ,
             as
             we
             can
             govern
             Mixture
             ,
             we
             may
             do
             what
             Nature
             doth
             .
          
           
             Which
             ,
             that
             we
             may
             still
             the
             better
             understand
             ;
             let
             us
             before
             ,
             and
             in
             the
             next
             place
             ,
             see
             the
             Causes
             of
             Mixture
             .
             For
             since
             Natural
             and
             
               Artificial
               Mixture
            
             are
             the
             same
             ;
             the
             
               immediate
               Causes
            
             of
             both
             ,
             are
             and
             must
             be
             the
             same
             .
          
        
         
           
           
             SECT
             .
             IV.
             
          
           
             NOW
             all
             the
             Causes
             of
             Mixture
             we
             can
             conceive
             of
             ,
             must
             ,
             I
             think
             ,
             be
             reduced
             to
             these
             six
             in
             
               general
               ;
               viz.
               Congruity
               ,
               Weight
               ,
               Compression
               ,
               Solution
               ,
               Digestion
               ,
            
             and
             Agitation
             .
          
           
             1.
             
             Congruity
             ,
             or
             aptitude
             and
             respondence
             betwixt
             the
             Sizes
             and
             Figures
             of
             parts
             to
             be
             mixed
             :
             whereby
             bodies
             may
             be
             truly
             called
             the
             
               Instrumental
               Causes
            
             of
             their
             
             own
             Mixture
             ,
             As
             when
             a
             plain
             answers
             to
             a
             plain
             ,
             a
             square
             to
             a
             square
             ,
             a
             convex
             to
             a
             concave
             ,
             or
             a
             less
             to
             a
             greater
             or
             an
             equal
             ,
             &c.
             according
             to
             which
             Respondencies
             in
             the
             parts
             of
             Bodies
             ,
             they
             are
             more
             or
             less
             easily
             mingleable
             .
          
           
             2.
             
             Weight
             ;
             by
             means
             whereof
             ,
             all
             Fluid
             Bodies
             ,
             upon
             supposition
             of
             the
             Congruity
             of
             their
             parts
             ,
             must
             unavoidably
             mingle
          
           
             3.
             
             Compression
             ;
             which
             either
             
             by
             the
             Air
             ,
             or
             any
             other
             body
             ,
             added
             to
             Weight
             ,
             must
             ,
             in
             some
             degree
             ,
             further
             Mixture
             .
             Because
             ,
             that
             Weight
             it self
             is
             but
             Pression
             .
          
           
             For
             further
             proof
             of
             all
             the
             said
             Causes
             ,
             I
             made
             this
             Experiment
             ▪
             Let
             Oyl
             of
             Anise-seeds
             ,
             and
             Oyl
             of
             Vitriol
             be
             put
             apart
             into
             the
             Receiver
             of
             an
             Air-Pump
             .
             And
             ,
             having
             exhausted
             it
             of
             the
             Air
             ,
             let
             the
             two
             said
             Oyls
             be
             then
             affused
             one
             upon
             the
             other
             .
             Whereupon
          
           
           
             First
             ,
             It
             is
             visible
             ,
             that
             they
             here
             mix
             and
             coagulate
             together
             ;
             that
             is
             ,
             their
             parts
             are
             wedged
             and
             intruded
             one
             into
             another
             ,
             without
             the
             
               usual
               compression
            
             of
             the
             Air
             ;
             for
             that
             is
             exhausted
             :
             and
             therefore
             only
             ,
             by
             the
             Congruity
             of
             their
             receiving
             and
             intruding
             parts
             ;
             and
             by
             their
             Weight
             ;
             by
             which
             alone
             they
             are
             so
             compressed
             ,
             as
             to
             make
             that
             Intrusion
             .
          
           
             Secondly
             ,
             It
             is
             also
             evident
             ,
             That
             although
             they
             do
             Coagulate
             ;
             
             yet
             not
             altogether
             so
             much
             ,
             as
             when
             powred
             together
             in
             the
             same
             manner
             ,
             and
             quantity
             ,
             in
             the
             
               open
               Air.
            
             Wherefore
             ,
             Compression
             ,
             whether
             made
             by
             the
             Air
             ,
             or
             any
             thing
             else
             ,
             doth
             somewhat
             further
             the
             Mixture
             of
             Bodies
             ,
             and
             the
             greater
             the
             Compression
             ,
             the
             more
             .
          
           
             4.
             
             Solution
             ;
             For
             all
             bodies
             mix
             best
             ,
             in
             
               Forma
               fluida
            
             .
             And
             that
             for
             two
             reasons
             .
          
           
             First
             ,
             Because
             the
             parts
             of
             a
             body
             are
             not
             then
             in
             a
             
             state
             of
             Vnion
             ,
             but
             of
             Separation
             ;
             and
             therefore
             ,
             in
             a
             more
             capable
             state
             ,
             for
             their
             Mixture
             and
             Vnion
             with
             the
             parts
             of
             another
             body
             .
          
           
             Secondly
             ,
             Because
             then
             they
             are
             also
             in
             a
             state
             of
             Motion
             ,
             more
             or
             less
             ;
             and
             therefore
             ,
             in
             a
             continual
             tendency
             towards
             Mixture
             ;
             all
             Mixture
             being
             made
             by
             Motion
             .
          
           
             Wherefore
             ,
             all
             Generations
             ,
             and
             most
             
               perfect
               Mixtures
            
             in
             Nature
             ,
             are
             made
             by
             Fluids
             ;
             whether
             
               Animal
               ,
               Vegetable
            
             ,
             or
             
             Mineral
             .
             Which
             is
             also
             agreeable
             to
             the
             Doctrine
             of
             the
             Honourable
             Mr.
             Boyle
             ,
             in
             his
             
               excellent
               Treatise
            
             of
             the
             Nature
             and
             Vertues
             of
             Gems
             .
          
           
             And
             't
             is
             well
             known
             ,
             That
             bodies
             are
             ordinarily
             -
             petrified
             ,
             or
             
               Stones
               made
            
             ,
             out
             of
             Water
             .
             That
             is
             ,
             out
             of
             
               petrifying
               parts
            
             dissolved
             
               per
               minima
            
             in
             Water
             ,
             as
             both
             their
             Menstruum
             and
             their
             Vehicle
             .
             Wherefore
             ,
             if
             we
             will
             talk
             of
             
               making
               Gold
            
             ;
             It
             must
             not
             be
             by
             the
             Philosophers
             Stone
             ,
             
             but
             by
             the
             Philosophers
             Liquor
             .
          
           
             5.
             
             Digestion
             .
             For
             which
             there
             is
             the
             same
             reason
             ,
             as
             for
             Mixture
             ,
             by
             Solution
             .
             For
          
           
             First
             ,
             All
             heat
             doth
             attenuate
             ,
             that
             is
             ,
             still
             further
             separate
             the
             parts
             of
             a
             body
             ;
             and
             so
             render
             them
             more
             mingleable
             with
             the
             parts
             of
             another
             .
             And
             therefore
          
           
             Secondly
             ,
             Doth
             also
             add
             more
             Motion
             to
             them
             ,
             in
             order
             to
             their
             Mixture
             .
          
           
             6.
             
             Agitation
             .
             Which
             I
             am
             
             induced
             to
             believe
             a
             great
             and
             effectual
             means
             of
             Mixture
             ,
             upon
             divers
             considerations
             .
             As
          
           
             First
             ,
             That
             the
             making
             of
             Blood
             in
             the
             Bodies
             of
             Animals
             ,
             and
             the
             mixing
             of
             the
             Chyle
             therewith
             ,
             is
             very
             much
             promoted
             by
             the
             same
             means
             ;
             sc.
             by
             the
             Agitation
             of
             the
             parts
             of
             the
             Blood
             and
             Chyle
             ,
             in
             their
             continual
             Circulation
             .
          
           
             Again
             ,
             From
             the
             making
             of
             Butter
             out
             of
             Milk
             ,
             by
             the
             
             same
             means
             :
             whereby
             alone
             is
             made
             a
             separation
             of
             the
             oleous
             parts
             from
             the
             whey
             ,
             and
             a
             mixture
             of
             them
             together
             .
          
           
             Moreover
             ,
             From
             the
             great
             Effects
             of
             Digestion
             ;
             well
             known
             to
             all
             that
             are
             conversant
             in
             
               Chymical
               Preparations
            
             .
             Which
             Digestion
             it self
             ,
             is
             but
             a
             kind
             of
             
               insensible
               Agitation
            
             of
             the
             parts
             of
             digested
             bodies
             .
          
           
             'T
             is
             also
             a
             known
             Experiment
             ,
             That
             the
             readiest
             way
             
             to
             dissolve
             Sugar
             in
             Wine
             or
             other
             Liquor
             ;
             is
             to
             give
             the
             Vessel
             a
             
               hasty
               turn
            
             ,
             together
             with
             a
             
               smart
               knock
            
             ,
             against
             any
             hard
             and
             steady
             body
             :
             whereby
             all
             the
             parts
             of
             the
             Sugar
             and
             Liquor
             ,
             are
             put
             into
             a
             vehement
             Agitation
             ,
             and
             so
             immediately
             mixed
             together
             .
          
           
             And
             I
             remember
             ,
             that
             having
             (
             with
             intent
             to
             make
             Mr.
             
             Mathews's
             Pill
             )
             put
             some
             Oyl
             of
             Turpentine
             and
             Salt
             of
             Tartar
             together
             in
             a
             bottle
             ,
             
             and
             sent
             it
             up
             hither
             out
             of
             the
             Country
             ;
             I
             found
             ,
             that
             the
             continual
             Agitation
             upon
             the
             Road
             ,
             for
             three
             or
             four
             days
             ,
             had
             done
             more
             towards
             their
             Mixture
             ;
             then
             a
             far
             greater
             time
             of
             Digestion
             alone
             had
             done
             before
             .
             And
             it
             is
             certain
             ,
             That
             a
             vehement
             Agitation
             ,
             especially
             if
             continu'd
             ,
             or
             joyned
             with
             Digestion
             ;
             will
             accelerate
             the
             Mixture
             of
             some
             bodies
             ,
             ten
             times
             more
             ,
             then
             any
             bare
             Digestion
             alone
             ;
             as
             may
             be
             
             proved
             by
             many
             Experiments
             .
          
           
             I
             will
             instance
             in
             this
             one
             .
             Let
             some
             Oyl
             of
             Turpentine
             and
             good
             Spirit
             of
             Nitre
             be
             stop'd
             up
             together
             in
             a
             bottle
             ,
             and
             the
             bottle
             held
             to
             the
             fire
             ,
             till
             the
             Liquors
             be
             a
             little
             heated
             ,
             and
             begin
             to
             bubble
             .
             Then
             having
             removed
             it
             ,
             and
             the
             Bubbles
             by
             degrees
             increasing
             more
             and
             more
             ;
             the
             two
             Liquors
             will
             of
             themselves
             ,
             at
             last
             fall
             into
             so
             impetuous
             an
             
             Ebullition
             ,
             as
             to
             make
             a
             kind
             of
             explosion
             ;
             sending
             forth
             a
             smoak
             for
             the
             space
             of
             almost
             
               two
               yards
            
             high
             .
             Whereupon
             ,
             the
             parts
             of
             both
             the
             Liquors
             ,
             being
             violently
             agitated
             ,
             they
             are
             ,
             in
             a
             
               great
               portion
               ,
               incorporated
            
             into
             a
             
               thick
               Balsam
            
             in
             a
             moment
             :
             and
             that
             without
             any
             intense
             heat
             ,
             as
             may
             be
             felt
             by
             the
             bottle
             .
             And
             thus
             much
             for
             the
             Causes
             of
             Mixture
             .
          
        
         
           
             SECT
             .
             V.
             
          
           
             HAVING
             enumerated
             the
             
               general
               Causes
            
             ,
             we
             
             shall
             ,
             lastly
             ,
             enquire
             into
             the
             Power
             and
             Vse
             of
             Mixture
             ;
             or
             ,
             into
             what
             it
             can
             Do
             and
             Teach
             .
             And
             I
             shall
             Instance
             in
             six
             particulars
             .
          
           
             First
             ,
             To
             Render
             all
             Bodies
             Sociable
             ,
             whatsoever
             they
             be
             .
          
           
             Secondly
             ,
             To
             
               Make
               Artificial
            
             Bodies
             in
             Imitation
             of
             those
             of
             Natures
             own
             production
             .
          
           
             Thirdly
             ,
             To
             Make
             or
             Imitate
             the
             
               sensible
               Qualities
            
             of
             Bod●es
             ;
             as
             Smells
             ,
             and
             Tasts
             .
          
           
             Fourthly
             ,
             To
             Make
             or
             Imitate
             their
             Faculties
             .
          
           
           
             Fifthly
             ,
             It
             is
             a
             Key
             ,
             to
             discover
             the
             Nature
             of
             Bodies
             .
          
           
             Sixthly
             ,
             To
             discover
             their
             Vse
             ,
             and
             the
             Manner
             of
             their
             
               Medicinal
               Operation
            
             .
          
           
             
               Instance
               I.
               
            
             
               FIRST
               ,
               To
               render
               all
               Bodies
               Sociable
               or
               M●ngleable
               :
               as
               Water
               with
               
                 Oyl
                 ,
                 Salt
              
               with
               Spirit
               ,
               and
               the
               like
               .
               For
               Natural
               and
               
                 Artificial
                 Mixture
              
               ,
               are
               the
               same
               ;
               as
               we
               have
               before
               proved
               .
               If
               therefore
               Nature
               can
               do
               it
               ,
               as
               we
               see
               in
               the
               Generation
               of
               bodies
               she
               
               doth
               ;
               't
               is
               likewise
               in
               the
               Power
               of
               Art
               to
               do
               it
               .
            
             
               And
               for
               the
               doing
               of
               it
               ,
               two
               
                 general
                 Rules
              
               result
               from
               the
               
                 Premisses
                 ,
                 sc.
              
               The
               Application
               of
               Causes
               ,
               and
               the
               Choice
               of
               Materials
               .
               As
               for
               the
               Causes
               ,
               they
               are
               such
               as
               I
               have
               now
               instanc'd
               in
               .
               And
               for
               the
               Application
               of
               them
               ,
               I
               shall
               give
               these
               
                 two
                 Rules
              
               .
            
             
               First
               ,
               That
               we
               tread
               in
               Natures
               steps
               as
               near
               as
               we
               can
               ;
               not
               only
               in
               the
               application
               of
               such
               a
               Cause
               ,
               as
               may
               be
               most
               
               proper
               for
               such
               a
               Mixture
               ;
               but
               also
               in
               allowing
               it
               
                 sufficient
                 time
              
               for
               its
               effect
               .
               For
               so
               we
               see
               Nature
               her self
               ,
               for
               her
               more
               
                 perfect
                 Mixtures
              
               ,
               usually
               doth
               .
               She
               maketh
               not
               a
               Flower
               ,
               or
               an
               Apple
               ,
               a
               Horse
               ,
               or
               a
               Man
               ,
               as
               it
               were
               in
               a
               moment
               ;
               but
               all
               things
               
                 by
                 degrees
              
               ;
               and
               for
               her
               more
               
                 perfect
                 and
                 elaborate
                 Mixtures
              
               ,
               for
               the
               most
               part
               ,
               she
               requireth
               
                 more
                 time
              
               .
               Because
               all
               such
               Mixtures
               are
               made
               and
               carri'd
               on
               
                 per
                 minima
              
               ;
               and
               therefore
               require
               
               a
               greater
               time
               for
               the
               compleating
               of
               them
               .
            
             
               A
               
                 second
                 Rule
              
               is
               ,
               Not
               only
               to
               make
               a
               due
               Application
               of
               the
               Causes
               ;
               but
               sometimes
               to
               Accumulate
               them
               .
               By
               which
               means
               ,
               we
               may
               not
               only
               
                 Imitate
                 Nature
              
               ,
               but
               in
               some
               cases
               go
               beyond
               her
               .
               For
               as
               by
               adding
               a
               Graft
               or
               Bud
               to
               the
               Stock
               ,
               we
               may
               produce
               
                 Fruit
                 sooner
              
               ,
               and
               sometimes
               better
               ,
               then
               Nature
               by
               the
               Stock
               alone
               would
               do
               :
               So
               here
               ,
               by
               accumulating
               the
               
               Causes
               of
               Mixture
               ;
               that
               is
               ,
               by
               joyning
               three
               ,
               or
               four
               ,
               or
               more
               together
               ;
               or
               by
               
                 applying
                 more
              
               in
               some
               cases
               ,
               where
               Nature
               applyeth
               fewer
               ;
               we
               may
               be
               able
               to
               make
               ,
               if
               not
               a
               more
               perfect
               ,
               yet
               a
               far
               more
               
                 speedy
                 Mixture
              
               ,
               than
               Nature
               doth
               .
               As
               by
               joyning
               
                 Compression
                 ,
                 Heat
              
               ,
               and
               violent
               Agitation
               ,
               and
               so
               continuing
               them
               all
               together
               ,
               by
               some
               means
               contrived
               for
               the
               purpose
               ,
               for
               the
               space
               of
               a
               week
               ,
               or
               moneth
               ,
               or
               longer
               ,
               without
               
               cessation
               .
               Which
               may
               probably
               produce
               ,
               not
               only
               strange
               ,
               but
               
                 useful
                 effects
              
               ,
               in
               the
               Solution
               of
               some
               ,
               and
               the
               Mixture
               of
               other
               Bodies
               .
               And
               may
               serve
               to
               mix
               such
               Bodies
               ,
               as
               through
               the
               
                 small
                 number
              
               of
               their
               congruous
               parts
               ,
               are
               hardly
               mingleable
               any
               other
               way
               .
               Agitation
               being
               ,
               as
               carrying
               the
               key
               to
               and
               fro
               ,
               till
               it
               hit
               the
               lock
               ;
               or
               within
               the
               lock
               ,
               till
               it
               hit
               the
               wards
               .
            
             
               Secondly
               ,
               For
               the
               Choice
               of
               
               Materials
               ,
               if
               they
               are
               not
               immediately
               ,
               that
               is
               ,
               of
               themselves
               ,
               mingleable
               ;
               we
               are
               then
               to
               turn
               one
               species
               of
               Mixture
               into
               a
               Rule
               ;
               which
               is
               ,
               To
               mix
               them
               by
               mediation
               of
               some
               third
               ,
               whether
               more
               simple
               or
               compounded
               body
               ,
               which
               may
               be
               congruous
               
                 in
                 part
              
               to
               them
               both
               :
               as
               
                 sulphurious
                 Salts
              
               are
               to
               Water
               and
               Oyl
               ;
               and
               are
               for
               that
               reason
               mingleable
               with
               either
               of
               them
               .
            
             
               Or
               ,
               By
               any
               two
               congruous
               
               Bodies
               ,
               which
               are
               also
               ,
               
                 in
                 part
              
               ,
               congruous
               to
               
                 two
                 others
              
               :
               and
               other
               like
               ways
               .
               Whereby
               the
               parts
               of
               Bodies
               ,
               though
               never
               so
               heterogeneous
               ,
               may
               yet
               be
               all
               bound
               and
               lock'd
               up
               together
               .
               Even
               as
               
                 twenty
                 keys
              
               may
               be
               united
               ,
               only
               by
               uniting
               the
               
                 two
                 Rings
              
               whereon
               they
               hang.
               
            
             
               The
               consideration
               of
               these
               things
               ,
               have
               put
               me
               upon
               making
               several
               Experiments
               ,
               for
               the
               Mingling
               of
               heterogeneous
               Bodies
               .
               I
               shall
               give
               two
               
               Examples
               of
               tryal
               ;
               the
               one
               upon
               fluid
               ,
               the
               other
               upon
               consistent
               ,
               Bodies
               .
            
             
               For
               the
               first
               ,
               I
               took
               Oyl
               of
               Anise-seeds
               ,
               and
               powring
               it
               upon
               another
               Body
               ;
               I
               so
               order'd
               it
               ,
               that
               it
               was
               thereby
               turned
               into
               a
               perfect
               
                 milk-white
                 Balsam
              
               ,
               or
               Butter
               .
               By
               which
               means
               the
               said
               Oyl
               became
               mingleable
               with
               any
               other
               
                 Liquor
                 ,
                 Oyl
                 ,
                 Wine
              
               ,
               or
               
                 Water
                 ;
                 easily
              
               ,
               and
               
                 instantaneously
                 dissolving
              
               therein
               ,
               in
               the
               form
               of
               a
               Milk.
               And
               note
               ,
               That
               this
               
               is
               done
               ,
               without
               the
               
                 least
                 alteration
              
               of
               the
               
                 smell
                 ,
                 tast
                 ,
                 nature
              
               or
               operation
               of
               the
               said
               Oyl
               .
            
             
               By
               somewhat
               the
               like
               means
               ,
               not
               only
               Oyl
               of
               Anise-seeds
               ,
               but
               any
               other
               
                 stillatitious
                 Oyl
              
               ,
               may
               be
               transformed
               into
               a
               perfect
               
                 milk
                 white
                 Butter
              
               ;
               and
               in
               like
               manner
               be
               mingled
               with
               Water
               or
               any
               other
               Liquor
               .
               Which
               is
               of
               
                 various
                 use
              
               in
               Medicine
               ;
               and
               what
               I
               find
               oftentimes
               very
               convenient
               and
               advantageous
               to
               be
               done
               .
            
             
             
               Again
               ,
               Not
               only
               fluid
               but
               consistent
               bodies
               ,
               which
               of
               themselvs
               will
               mix
               only
               with
               Oyl
               ;
               by
               due
               mixture
               with
               other
               bodies
               ,
               maybe
               render'd
               easily
               dissoluble
               in
               Water
               ;
               as
               may
               Rosin
               ,
               and
               all
               resinous
               and
               
                 friable
                 Gums
              
               .
               As
               also
               Wax
               :
               and
               this
               without
               changing
               much
               of
               their
               
                 Colour
                 ,
                 Tast
              
               or
               Smell
               .
               Whereof
               likewise
               ,
               whatsoever
               others
               may
               do
               ,
               the
               Physician
               may
               make
               a
               manifold
               Vse
               .
            
          
           
             
             
               Instance
               II.
               
            
             
               BY
               Mixture
               also
               ,
               we
               may
               be
               taught
               to
               Imitate
               the
               Productions
               of
               Nature
               .
               As
               to
               which
               ,
               from
               what
               we
               have
               before
               said
               of
               Mixture
               ,
               we
               may
               conclude
               ;
               That
               there
               is
               no
               generation
               of
               Bodies
               unorganical
               ,
               but
               what
               is
               in
               the
               power
               of
               Mixture
               to
               imitate
               .
               As
               of
               Animals
               ,
               to
               Imitate
               
                 Blood
                 ,
                 Fat
                 ,
                 Chyle
                 ,
                 Spittle
                 ,
                 Flegm
                 ,
                 Bile
                 ,
              
               &c.
               
               Of
               Vegetables
               ,
               to
               Imitate
               a
               
                 Milk
                 ,
                 Mucilage
                 ,
                 Rosin
                 ,
                 Gum
                 ,
                 or
                 Salt.
              
               Of
               Minerals
               ,
               
               to
               Imitate
               
                 Vitriol
                 ,
                 Allom
              
               ,
               and
               other
               Salts
               ;
               as
               also
               Metals
               ,
               and
               the
               like
               .
            
             
               I
               do
               not
               say
               ,
               I
               can
               do
               all
               this
               :
               but
               if
               upon
               good
               premisses
               we
               may
               conclude
               this
               may
               be
               done
               ;
               it
               is
               one
               step
               to
               the
               doing
               of
               it
               .
               But
               I
               will
               also
               give
               an
               Instance
               of
               somewhat
               that
               may
               be
               done
               in
               every
               kind
               .
               And
            
             
               1.
               
               First
               ,
               For
               the
               Imitation
               of
               an
               
                 animal
                 body
              
               ,
               I
               will
               instance
               in
               Fat.
               Which
               may
               be
               made
               thus
               ;
               Take
               
                 Oyl
                 Olive
              
               ,
               
               and
               powr
               it
               upon
               high
               Spirit
               of
               Nitre
               .
               Then
               digest
               them
               for
               some
               days
               .
               By
               degrees
               ,
               the
               Oyl
               becomes
               of
               the
               colour
               of
               Marrow
               ;
               and
               at
               last
               ,
               is
               congealed
               ,
               or
               hardned
               into
               a
               
                 white
                 Fat
              
               or
               Butter
               ,
               which
               dissolveth
               only
               by
               the
               fire
               ,
               as
               that
               of
               Animals
               .
            
             
               In
               converting
               Oyl
               thus
               into
               Fat
               ,
               it
               is
               to
               be
               noted
               ,
               That
               it
               hardens
               most
               upon
               the
               exhalation
               of
               some
               of
               the
               more
               Sulphureous
               parts
               of
               the
               Spirit
               of
               Nitre
               .
               Which
               I
               effected
               ,
               
               well
               enough
               for
               my
               purpose
               ,
               by
               unstopping
               the
               glass
               after
               some
               time
               of
               digestion
               ;
               and
               so
               suffering
               the
               Oyl
               to
               dissolve
               and
               thicken
               divers
               times
               by
               successive
               heat
               and
               cold
               .
            
             
               Hence
               ,
               The
               true
               
                 Congealing
                 Principle
              
               ,
               is
               a
               
                 Spirit
                 of
                 Nitre
                 separated
                 from
                 its
                 Sulphur
                 .
              
               For
               the
               better
               doing
               whereof
               ,
               the
               Air
               is
               a
               most
               commodious
               Menstruum
               to
               the
               said
               Spirit
               of
               Nitre
               .
            
             
               Whence
               also
               ,
               if
               we
               could
               
               procure
               such
               a
               Spirit
               of
               Nitre
               ,
               we
               might
               
                 congele
                 Water
              
               in
               the
               midst
               of
               Summer
               .
               We
               might
               also
               
                 refrigerate
                 Rooms
              
               herewith
               artificially
               .
               And
               might
               Imitate
               all
               
                 frosty
                 Meteors
              
               .
               For
               the
               making
               of
               Fat
               ,
               is
               but
               the
               
                 Durable
                 Congelation
              
               of
               Oyl
               ▪
               which
               may
               be
               done
               without
               frost
               ,
               as
               I
               have
               shew'd
               how
               .
            
             
               Hence
               also
               it
               appears
               ,
               That
               
                 Animal
                 Fat
              
               it self
               ,
               is
               but
               the
               Curdling
               of
               the
               Oily
               parts
               of
               the
               Blood
               ;
               either
               by
               some
               of
               
               its
               own
               Saline
               parts
               ;
               or
               by
               the
               Nitrous
               parts
               of
               the
               Air
               mingled
               therewith
               .
            
             
               Hence
               likewise
               it
               is
               ,
               That
               some
               Animals
               ,
               as
               Conies
               ,
               and
               Fieldfares
               ,
               grow
               fatter
               in
               frosty
               weather
               :
               the
               oily
               parts
               of
               the
               blood
               ,
               being
               then
               more
               than
               ordinarily
               coagulated
               with
               a
               greater
               abundance
               of
               nitrous
               parts
               received
               from
               the
               Air
               into
               their
               bodies
               .
            
             
               For
               the
               same
               reason
               it
               is
               ,
               That
               the
               Fat
               of
               Land-Animals
               is
               hard
               ;
               whereas
               that
               of
               
               Fish
               is
               
                 very
                 soft
              
               ,
               and
               in
               a
               great
               part
               runs
               to
               
                 Oyl
                 ,
                 sc.
              
               Because
               the
               Water
               ,
               wherein
               they
               live
               ,
               and
               which
               they
               have
               instead
               of
               breath
               ,
               hath
               but
               very
               few
               nitrous
               parts
               in
               it
               ,
               in
               comparison
               of
               what
               the
               Air
               hath
               .
            
             
               2.
               
               For
               the
               Imitation
               of
               a
               
                 Vegetable
                 Body
              
               ,
               I
               will
               give
               three
               Instances
               ;
               In
               
                 Rosin
                 ,
                 Gum
              
               ,
               and
               a
               
                 Lixivial
                 Salt.
              
               The
               first
               may
               be
               made
               thus
               ;
               Take
               good
               Oyl
               of
               Vitriol
               ,
               and
               drop
               it
               upon
               Oyl
               of
               Anise-seeds
               ;
               and
               they
               
               will
               forthwith
               incorporate
               together
               ;
               and
               by
               degrees
               ,
               will
               harden
               into
               a
               
                 perfect
                 Rosin
              
               ;
               with
               the
               general
               and
               
                 defining
                 Properties
              
               of
               a
               
                 truly
                 Natural
                 Resinous
                 Gum.
              
               Being
               not
               in
               the
               least
               dissoluble
               in
               Water
               ;
               or
               at
               least
               ,
               not
               any
               more
               ,
               then
               any
               natural
               Rosin
               or
               Gum
               :
               yet
               very
               easily
               by
               fire
               :
               as
               also
               highly
               inflammable
               :
               and
               exceeding
               friable
               .
            
             
               Although
               this
               
                 artificial
                 rosin
              
               ,
               be
               the
               result
               of
               
                 two
                 Liquors
              
               ,
               both
               which
               very
               strongly
               
               affect
               the
               Sense
               :
               yet
               being
               well
               washed
               from
               the
               
                 unincorporated
                 parts
              
               ,
               (
               which
               is
               to
               be
               done
               with
               some
               care
               )
               it
               hath
               scarce
               any
               Tast
               or
               Smell
               .
            
             
               The
               Concentration
               of
               these
               
                 two
                 Liquors
              
               ,
               is
               likewise
               so
               universal
               ;
               that
               the
               Rosin
               is
               not
               made
               by
               Precipitation
               ,
               but
               almost
               a
               
                 total
                 Combination
              
               of
               the
               said
               Liquors
               ;
               and
               that
               with
               scarce
               so
               much
               ,
               as
               any
               visible
               fumes
               .
            
             
               Again
               ,
               Having
               taken
               a
               certain
               Powder
               and
               a
               
                 Saline
                 Liquor
              
               ,
               
               and
               mixed
               them
               together
               in
               a
               bottle
               ,
               and
               so
               digested
               them
               for
               some
               time
               ;
               the
               Powder
               was
               at
               last
               transmuted
               to
               a
               perfect
               
                 Oily
                 Gum
              
               ;
               which
               will
               also
               dissolve
               either
               in
               Oyl
               ,
               or
               in
               Water
               ;
               in
               the
               self
               same
               manner
               ,
               as
               
                 Galbanum
                 ,
                 Ammoniac
              
               ,
               and
               the
               like
               will
               do
               .
            
             
               And
               Lastly
               ,
               A
               
                 Lixivial
                 Salt
              
               may
               be
               imitated
               thus
               ;
               Take
               
                 Nitre
                 ,
                 Oyl
              
               of
               Vitriol
               and
               high
               Spirit
               of
               Wine
               ,
               of
               each
               a
               like
               quantity
               .
               Of
               these
               three
               Bodies
               ,
               
               not
               any
               two
               being
               
                 put
                 together
              
               ;
               that
               is
               to
               say
               ,
               neither
               the
               Nitre
               with
               the
               Oyl
               ,
               nor
               the
               Oyl
               with
               the
               Spirit
               ,
               nor
               the
               Nitre
               with
               the
               Spirit
               ;
               will
               make
               the
               
                 least
                 ebullition
              
               :
               yet
               all
               
                 three
                 mingled
                 together
              
               ,
               make
               a
               very
               
                 conspicuous
                 one
              
               .
               The
               Spirit
               of
               Wine
               being
               as
               the
               Sulphur
               ;
               and
               so
               that
               ,
               and
               the
               Nitre
               together
               ,
               standing
               ,
               as
               it
               were
               ,
               in
               the
               stead
               of
               an
               Alkalizate
               ,
               that
               is
               ,
               a
               
                 Sulphurious
                 Salt
              
               ,
               against
               the
               Oyl
               of
               Vitriol
               .
               Divers
               
               other
               Experiments
               I
               can
               shew
               of
               the
               like
               nature
               .
            
             
               3.
               
               In
               the
               last
               place
               ,
               for
               the
               Imitation
               of
               a
               
                 Mineral
                 Body
              
               ,
               I
               will
               instance
               in
               
                 two
                 ,
                 sc.
                 Nitre
              
               and
               
                 Marine
                 Salt
              
               ;
               if
               I
               may
               have
               leave
               to
               reckon
               them
               amongst
               
                 Mineral
                 Bodies
              
               .
               As
               for
               Nitre
               ,
               by
               mixing
               of
               
                 four
                 Liquors
              
               together
               ,
               and
               then
               setting
               them
               to
               shoot
               ;
               I
               have
               obtained
               Crystals
               of
               true
               and
               
                 perfect
                 Salt
              
               ;
               which
               have
               had
               much
               of
               a
               
                 nitrous
                 tast
              
               ;
               and
               would
               be
               melted
               with
               a
               
                 gentle
                 
                 heat
              
               ,
               as
               Nitre
               is
               ;
               and
               even
               as
               easily
               as
               Butter
               it self
               :
               I
               mean
               ,
               not
               by
               the
               addition
               of
               any
               sort
               of
               Liquor
               ,
               or
               any
               other
               body
               ,
               to
               dissolve
               it
               ;
               but
               only
               by
               the
               fire
               .
            
             
               And
               as
               for
               a
               Sea-Salt
               ,
               that
               I
               might
               
                 Imitate
                 Nature
              
               for
               the
               making
               hereof
               ,
               I
               consider'd
               ,
               That
               the
               Salt
               so
               called
               ,
               was
               nothing
               else
               but
               Animal
               and
               
                 Vegetable
                 Salt
              
               ,
               freed
               from
               its
               true
               Spirit
               and
               Sulphur
               ,
               and
               some
               
                 Saline
                 particles
                 ,
                 specifically
                 Animal
              
               
               or
               Vegetable
               ,
               together
               with
               them
               .
               For
               both
               Animal
               and
               Vegetable
               bodies
               being
               continually
               carried
               by
               all
               Rivers
               into
               the
               Sea
               ;
               and
               many
               likewise
               by
               Shipwrack
               ,
               and
               divers
               other
               ways
               ,
               immersed
               therein
               :
               they
               are
               at
               last
               corrupted
               ,
               that
               is
               ,
               their
               Compounding
               parts
               are
               opened
               and
               resolved
               .
               Yet
               the
               Resolution
               being
               in
               the
               Water
               ,
               is
               not
               made
               precipitately
               ,
               as
               it
               is
               in
               the
               Air
               ;
               but
               by
               degrees
               ,
               and
               very
               gently
               .
               
               Whence
               the
               Sulphurious
               ,
               and
               other
               more
               Volatile
               parts
               ,
               in
               their
               avolation
               ,
               make
               not
               so
               much
               hast
               ,
               as
               to
               carry
               the
               more
               
                 fixed
                 Saline
              
               parts
               along
               with
               them
               ;
               but
               leaveth
               them
               behind
               in
               the
               Water
               ,
               which
               imbibeth
               them
               ,
               as
               their
               proper
               Menstruum
               .
            
             
               And
               the
               Imitation
               of
               Nature
               herein
               ,
               may
               be
               performed
               thus
               ;
               Put
               as
               much
               of
               a
               
                 Lixivial
                 Salt
              
               as
               you
               please
               ,
               into
               a
               wide
               mouth'd
               
               bottle
               ,
               and
               with
               fair
               Water
               make
               a
               strong
               Solution
               of
               it
               ;
               so
               as
               some
               part
               thereof
               may
               remain
               unresolved
               at
               the
               bottom
               of
               the
               bottle
               .
               Let
               the
               bottle
               stand
               thus
               for
               the
               space
               of
               about
               half
               or
               three
               quarters
               of
               a
               year
               ,
               all
               the
               time
               unstopped
               .
               In
               which
               time
               ,
               many
               of
               the
               Sulphurious
               and
               other
               more
               Volatile
               parts
               gradually
               flying
               away
               ;
               the
               top
               of
               the
               
                 unresolved
                 Salt
              
               will
               be
               incrustate
               ,
               or
               as
               it
               were
               frosted
               
               over
               ,
               with
               many
               small
               and
               hard
               Concretions
               ,
               which
               for
               their
               nature
               ,
               are
               become
               a
               true
               Sea-Salt
               .
               Whereof
               there
               is
               a
               double
               proof
               ;
               First
               ,
               In
               that
               most
               of
               the
               said
               Concretions
               are
               of
               a
               Cubical
               ,
               or
               very
               like
               Figure
               .
               Especially
               on
               their
               upper
               parts
               ;
               because
               having
               a
               
                 fixed
                 body
              
               for
               their
               basis
               ,
               their
               under
               parts
               ,
               therefore
               ,
               contiguous
               thereto
               ,
               are
               less
               regular
               .
               Whereas
               the
               parts
               of
               Salt
               in
               the
               Sea
               ,
               being
               environed
               
               on
               all
               sides
               with
               a
               fluid
               ;
               their
               Figure
               is
               therefore
               on
               all
               sides
               
                 regular
                 .
                 Secondly
              
               ,
               In
               that
               a
               strong
               
                 Acid
                 Spirit
              
               or
               Oyl
               being
               powred
               upon
               a
               
                 full
                 body'd
                 Solution
              
               hereof
               ;
               yet
               it
               maketh
               herewith
               no
               Ebullition
               ;
               which
               is
               also
               the
               property
               of
               Sea-Salt
               .
               And
               thus
               much
               for
               the
               more
               
                 general
                 Imitation
              
               of
               Bodies
               .
            
          
           
             
             
               Instance
               III.
               
            
             
               FROM
               the
               aforesaid
               Premisses
               ,
               and
               by
               the
               aforesaid
               Means
               ,
               there
               is
               no
               doubt
               to
               be
               made
               ,
               but
               that
               also
               the
               other
               
                 sensible
                 Qualities
              
               of
               Bodies
               may
               be
               Imitated
               ,
               as
               their
               Odours
               and
               Tasts
               .
               And
               that
               not
               only
               the
               general
               ones
               ,
               as
               Fragrant
               ,
               or
               Astringent
               :
               but
               also
               those
               which
               are
               specifical
               and
               proper
               to
               such
               a
               species
               of
               Bodies
               .
               
               Thus
               ,
               for
               example
               ,
               by
               mixing
               several
               Bodies
               together
               ,
               in
               a
               due
               proportion
               ,
               I
               have
               Imitated
               the
               Smells
               of
               
                 divers
                 Vegetables
              
               ;
               as
               of
               Tansy
               ,
               of
               
                 Lignum
                 Rhodium
              
               ,
               and
               others
               .
               And
               I
               conclude
               it
               feasable
               ,
               To
               Imitate
               the
               Tast
               or
               Smell
               of
               Musk
               ,
               or
               Amber-greece
               ,
               or
               
                 any
                 other
              
               body
               in
               the
               world
               .
            
          
           
             
             
               Instance
               IV.
               
            
             
               HENCE
               also
               we
               may
               be
               Taught
               ,
               How
               to
               Imitate
               the
               Faculties
               ,
               as
               well
               as
               other
               Qualities
               of
               Bodies
               .
               The
               reason
               is
               ,
               because
               even
               these
               have
               no
               dependance
               upon
               any
               
                 substantial
                 Form
              
               ;
               as
               in
               the
               first
               Part
               of
               my
               last
               Book
               of
               the
               
                 Anatomy
                 of
                 Vegetables
              
               ,
               I
               think
               ,
               I
               have
               ,
               in
               a
               few
               lines
               ,
               clearly
               made
               out
               :
               but
               are
               the
               meer
               result
               
               of
               Mixture
               ;
               effected
               by
               the
               same
               Causes
               ,
               whether
               in
               Nature
               or
               Art
               ;
               as
               also
               in
               the
               premisses
               of
               this
               Discourse
               hath
               been
               shew'd
               .
            
          
           
             
               Instance
               V.
               
            
             
               FROM
               whence
               ,
               again
               ,
               it
               is
               likewise
               a
               Key
               to
               Discover
               the
               Nature
               of
               Bodies
               .
               For
               how
               far
               soever
               we
               can
               attain
               to
               Mingle
               ,
               or
               to
               Make
               them
               ,
               we
               may
               also
               know
               
                 what
                 they
                 are
              
               .
            
             
             
               For
               Bodies
               are
               mingleable
               ,
               either
               
                 of
                 themselves
              
               ,
               or
               by
               some
               third
               .
               As
               to
               those
               which
               
                 mingle
                 of
                 themselves
              
               ,
               we
               may
               certainly
               conclude
               ,
               That
               there
               is
               a
               congruity
               betwixt
               them
               ,
               in
               some
               respect
               or
               other
               .
               So
               upon
               various
               tryals
               I
               find
               ,
               that
               
                 Essential
                 Oyls
              
               do
               more
               easily
               imbibe
               an
               Acid
               ,
               then
               an
               Alkaly
               .
               Whence
               it
               is
               evident
               ,
               That
               there
               is
               some
               congruity
               and
               similitude
               betwixt
               
                 Essential
                 Oyls
              
               ,
               and
               an
               Acid
               ,
               which
               
               there
               is
               not
               betwixt
               the
               said
               Oyls
               and
               an
               Alkaly
               .
            
             
               As
               to
               those
               that
               mingle
               only
               by
               some
               third
               ;
               we
               may
               also
               certainly
               conclude
               ,
               That
               though
               the
               
                 two
                 extreams
              
               are
               unlike
               ;
               yet
               that
               they
               have
               both
               of
               them
               a
               similitude
               to
               or
               congruity
               with
               that
               third
               ,
               by
               which
               they
               are
               united
               .
            
             
               Moreover
               ,
               We
               may
               make
               a
               Judgment
               from
               the
               Manner
               or
               Degree
               of
               Mixture
               .
               Thus
               the
               
                 Acid
                 Spirit
              
               of
               Nitre
               ,
               as
               is
               
               said
               ,
               will
               
                 coagulate
                 Oyl-Olive
              
               ,
               and
               render
               it
               consistent
               .
               Whence
               it
               might
               be
               thought
               ,
               That
               any
               other
               strong
               Acid
               will
               do
               the
               like
               ;
               and
               that
               therefore
               ,
               there
               is
               no
               great
               difference
               in
               the
               Nature
               of
               the
               said
               
                 Acid
                 Liquors
              
               .
               But
               the
               contrary
               hereunto
               ,
               is
               proved
               by
               Experiment
               .
               For
               having
               digested
               the
               same
               Oyl
               ,
               in
               the
               same
               manner
               ,
               and
               for
               a
               much
               longer
               time
               ,
               with
               strong
               Oyl
               of
               Sulphur
               ;
               although
               it
               
               thence
               acquired
               some
               change
               of
               Colour
               ,
               yet
               not
               any
               Consistence
               .
            
             
               Again
               ,
               Because
               the
               said
               Spirit
               of
               
                 Nitre
                 coagulates
                 Oyl-Olive
              
               ;
               it
               might
               be
               expected
               ,
               it
               should
               have
               the
               same
               effect
               ,
               upon
               Oyl
               of
               Anise-seeds
               ;
               or
               ,
               at
               least
               ,
               that
               if
               other
               Acids
               will
               
                 coagulate
                 Oyl
              
               of
               Anise-seeds
               ,
               that
               this
               should
               do
               it
               best
               .
               But
               Experiment
               proveth
               the
               contrary
               .
               For
               of
               all
               I
               have
               tryed
               ,
               Oyl
               of
               Vitriol
               is
               the
               only
               
               Acid
               that
               doth
               it
               
                 instantaneously
                 .
                 Oyl
              
               of
               Sulphur
               ,
               if
               very
               strong
               ,
               will
               do
               it
               ;
               but
               not
               so
               soon
               ,
               nor
               so
               
                 much
                 .
                 Aqua
                 fortis
              
               ,
               and
               Spirit
               of
               Salt
               ,
               for
               the
               present
               ,
               
                 do
                 not
              
               at
               all
               touch
               it
               .
               And
               Spirit
               of
               Nitre
               it self
               will
               not
               coagulate
               it
               ,
               under
               eight
               or
               ten
               hours
               at
               least
               .
            
          
           
             
             
               Instance
               VI.
               
            
             
               LASTLY
               ,
               and
               consequently
               ,
               It
               is
               a
               Key
               ,
               To
               Discover
               the
               
                 Medicinal
                 Vse
              
               and
               Operation
               of
               Bodies
               .
               Thus
               ,
               for
               example
               ,
               by
               the
               Imitation
               of
               Rosins
               and
               
                 Resinous
                 Gums
              
               ,
               we
               certainly
               know
               what
               all
               of
               them
               are
               ,
               and
               when
               ,
               and
               wherefore
               to
               be
               used
               .
               For
               what
               are
               
                 Mastick
                 ,
                 Frankincense
                 ,
                 
                 Olibanum
                 ,
                 Benzoin
                 ,
              
               and
               
                 other
                 like
                 Rosins
              
               ,
               or
               
                 Resinous
                 Gums
              
               ,
               for
               their
               principal
               and
               predominant
               parts
               ,
               that
               is
               ,
               
                 qua
                 Rosins
              
               ;
               but
               Bodies
               resulting
               from
               Natural
               ,
               in
               like
               manner
               ,
               as
               I
               have
               shewed
               ,
               they
               may
               be
               made
               to
               result
               ,
               from
               
                 Artificial
                 Mixture
              
               ?
               That
               is
               to
               say
               ,
               the
               Oleous
               ,
               and
               Acid
               parts
               of
               Vegetables
               ,
               being
               both
               affused
               and
               mingled
               together
               ,
               
               
                 per
                 minima
              
               ,
               in
               some
               one
               Vessel
               of
               a
               Plant
               ,
               they
               thus
               incorporate
               into
               one
               consistent
               and
               friable
               body
               ,
               which
               we
               call
               Rosin
               .
            
             
               Now
               from
               hence
               it
               is
               ,
               that
               the
               said
               Rosins
               ,
               and
               
                 Resinous
                 Gums
              
               ;
               as
               also
               Amber
               and
               Sulphur
               for
               the
               same
               reasons
               ;
               are
               of
               so
               great
               and
               effectual
               Vse
               against
               most
               thin
               and
               
                 salt
                 Rheums
                 ;
                 sc.
              
               as
               they
               are
               Acido-oleous
               
               Bodies
               .
               For
               by
               their
               Acid
               parts
               ,
               which
               in
               all
               these
               Bodies
               are
               exceeding
               copious
               ,
               they
               mortifie
               and
               refract
               those
               salt
               ones
               which
               feed
               the
               Rheum
               .
               And
               by
               their
               oleous
               parts
               ,
               the
               same
               salt
               ones
               are
               also
               Imbibed
               .
               Whence
               ,
               they
               are
               all
               ,
               in
               some
               degree
               ,
               incorporated
               together
               ;
               that
               is
               ,
               the
               Rheum
               is
               thickned
               :
               which
               is
               the
               desired
               effect
               .
            
             
             
               Whereas
               ,
               on
               the
               contrary
               ,
               if
               the
               Cough
               proceed
               not
               from
               a
               thin
               and
               especially
               a
               
                 salt
                 Rheum
              
               ,
               but
               from
               a
               
                 Viscous
                 Flegm
              
               ;
               the
               use
               of
               
                 many
                 other
              
               Bodies
               ,
               which
               are
               also
               more
               oleous
               ,
               and
               abound
               not
               so
               much
               with
               an
               Acid
               as
               these
               do
               ,
               especially
               some
               of
               them
               ,
               is
               more
               proper
               :
               such
               as
               these
               ,
               in
               this
               case
               ,
               proving
               sometimes
               not
               only
               ineffectual
               ,
               but
               prejudicial
               .
               
               Since
               the
               very
               Cause
               of
               the
               said
               Viscousness
               of
               Phlegm
               ,
               is
               chiefly
               some
               great
               Acidity
               in
               the
               Blood
               ,
               or
               in
               some
               other
               part
               ;
               as
               may
               be
               proved
               by
               divers
               arguments
               .
            
             
               Many
               more
               Instances
               might
               be
               hereunto
               subjoyned
               :
               and
               may
               hereafter
               be
               offered
               to
               the
               acceptance
               of
               such
               ,
               who
               are
               inquisitive
               into
               matters
               of
               this
               Nature
               .
               If
               I
               shall
               not
               herein
               anticipate
               ,
               or
               
               reiterate
               the
               Thoughts
               and
               Observations
               ,
               of
               those
               two
               accurate
               and
               
                 Learned
                 Persons
              
               Dr.
               Willis
               ,
               and
               Dr.
               
                 Walter
                 Needham
              
               ,
               as
               to
               what
               the
               one
               hath
               already
               published
               ,
               and
               both
               have
               put
               us
               in
               expectation
               of
               .
               But
               the
               Instances
               already
               given
               ,
               are
               sufficient
               to
               evidence
               what
               I
               have
               said
               .
               And
               ,
               I
               hope
               ,
               this
               present
               Discourse
               to
               prove
               ,
               in
               some
               measure
               ,
               thus
               much
               ;
               
               That
               Experiment
               ,
               and
               the
               
                 Common
                 Notions
              
               of
               Sense
               are
               prolifick
               ;
               and
               that
               nothing
               is
               barren
               ,
               but
               phancy
               and
               imagination
               .
            
          
        
         
           FINIS
           .
        
         
      
    
     
  

