id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
iguana-17690	Henderson, J. G.	Use of the Rattles of the Rattlesnake	2007	3	.pdf	application/pdf	2464	65	53	The reader will please not suppose that because I have boldly followed the lead of the most advanced of the champions of natural selection that I am convinced of its sufficiency as an explanation of the great diversities which exist among animals or of its being sufficient basis for an explanation of the snake’s rattle. SU ZA N N E L. C O LL IN S, C N A H the theory of natural selection.	cache/iguana-17690.pdf	txt/iguana-17690.txt