id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
chapter_002		chapter_002			.txt	text/plain	4937	138	47	For instance, Mr. H. C. Watson has marked for me in the well-sifted London Catalogue of plants (4th edition) 63 plants which are therein ranked as species, but which he considers as so closely allied to other species as to be of doubtful value: these 63 reputed species range on an average over 6.9 of the provinces into which Mr. Watson has divided Great Britain. Species very closely allied to other species apparently have restricted ranges.	cache/chapter_002.txt	txt/chapter_002.txt
