id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
chapter_001		chapter_001			.txt	text/plain	11912	327	49	When in any country several domestic breeds have once been established, their occasional intercrossing, with the aid of selection, has, no doubt, largely aided in the formation of new sub-breeds; but the importance of the crossing of varieties has, I believe, been greatly exaggerated, both in regard to aniggerated, both in regard to animals and to those plants which are propagated by seed. When we bear in mind that Britain has now hardly one peculiar mammal, and France but few distinct from those of Germany and conversely, and so with Hungary, Spain, &c., but that each of these kingdoms possesses several peculiar breeds of cattle, sheep, &c., we must admit that many domestic breeds have originated in Europe; for whence could they have been derived, as these several countries do not possess a number of peculiar species as distinct parent-stocks?	cache/chapter_001.txt	txt/chapter_001.txt
