id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
crl-10176	Bryan, Alice I.	Legibility of Library of Congress Cards and Their Reproductions	1945	18	.pdf	application/pdf	10249	482	65	In working out an order of occurrence within each set of thirty worksheets for the three sizes ~f type and for the six possible sequences (small-medium, small-large, me- dium-small, medium-large, large-small, and large-medium)' it was important to avoid any regularly recurring rhythms to which 452 COLLEGE AND RESEARCH LIBRARIES the subjects' eyes might adjust in a way that might mask the effects - of size differences. In commenting on the reduction of the full-size 8-point type also used on L.C. cards, Luckiesh reports: The equivalent type-size of the reproduc- tions varies from 4· 5 to 5. 7 as determined by measurements of relative visibility ....	cache/crl-10176.pdf	txt/crl-10176.txt