id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
4524	Liebig, Justus, Freiherr von	Familiar Letters on Chemistry, and Its Relation to Commerce, Physiology, and Agriculture			.txt	text/plain	35822	1414	57	compound bodies produced with equal weights of two elements! constant supply of certain matters, animal food, and of oxygen, in hydrogen of certain parts of the animal body combine with the oxygen carbonic acid and water, 64.102 grains of oxygen are required. the elements of the food, is the source of animal heat. In the animal body, heat is produced only in those parts to which necessity for food containing carbon and hydrogen increases in the only class of animals whose food contains fat, inspire more oxygen these, the blood contains certain fatty bodies in small quantity, Vegetables produce in their organism the blood of all animals, for decaying organic matter present in the soil supplying carbonic acid, In whatever form the nitrogen supplied to plants may be contained in animals, from vegetable substances used as food; they had been to become food for man and animals can be formed in any plant	./cache/4524.txt	./txt/4524.txt