id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
2925	Huxley, Thomas Henry	The Conditions of Existence as Affecting the Perpetuation of Living Beings Lecture V. (of VI.), "Lectures to Working Men", at the Museum of Practical Geology, 1863, on Darwin's Work: "Origin of Species"			.txt	text/plain	7571	277	66	be as different in their structure from the original stock as species There is no doubt that breeds may be made as different as species in to this in the different races known to be produced by selective in the case of distinct species; then you have, as the result of their which have been developed by selective breeding from varieties to return noticed the great differences in these breeds, that if, among any of important one--is this: Does this selective breeding occur in nature? same thing--that varieties exist in nature within the limits of species, As to the first point, of varieties existing among natural species, I animal may vary in nature; that varieties may arise in the way I have animal or a plant lives or grows; for example, the station of a fish as a matter of fact, that for every species of animal or plant there	./cache/2925.txt	./txt/2925.txt