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. Our domestic animals, their habits, intelligence and usefulness;. as to the external appearance of the breedthey prefer. But a choice once made should 224 OUR DOMESTIC ANIMALS be kept to. Then the breeder must applyhimself to improve the species, bearing inmind that all hens will not lay from onehundred and fifty to two hundred and eightyeggs, as the advertisers endeavor to make usthink, and also that out of every five hundredeggs half will produce cocks. On large poultry young and old. It is composed of shell, skin,white of egg, and yolk, the latter a fatty, yellowsubstance. As human food a
. Our domestic animals, their habits, intelligence and usefulness;. as to the external appearance of the breedthey prefer. But a choice once made should 224 OUR DOMESTIC ANIMALS be kept to. Then the breeder must applyhimself to improve the species, bearing inmind that all hens will not lay from onehundred and fifty to two hundred and eightyeggs, as the advertisers endeavor to make usthink, and also that out of every five hundredeggs half will produce cocks. On large poultry young and old. It is composed of shell, skin,white of egg, and yolk, the latter a fatty, yellowsubstance. As human food an egg does notcontain (as often stated) as much nourishmentas half a pound of meat; it would take six orseven eggs for that. The white contains eighty-five per cent of water, the yolk fifty-one per. Plymouth Rocks farms where different breeds are kept it isusual to divide their yard with wire netting,giving to each species a run of its own. Hens are raised for their eggs. The eggthat the fowl produces, from which a fowlissues in turn, is, next to milk, mans bestfood, the- most strengthening, the purest, themost unadulterable, the most healthful for cent of water and thirty-one per cent of hens egg, analyzed chemically, contains inaddition thirteen per cent of albumen, twelveper cent of fat, and no hydrate of carbon,„which sufficiently proves that it could neverserve exclusively for human food. The shell is composed of phosphoric acid,chalk, iron, sulphur, and gluten. It is proper THH GALLINACEOUS TRIBES to take account of these elements in feeilini. hens. If occasionally eggs are found without Exportation from Russia is becoming veryactive of late, and this country is coming toshells, it is a proof that the food was unsuit- be a formidable rival of Denmark in the Eng-able
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