462 THE ANIMALS OF THE EARTH 



and bones are made into leather, glue, tallow, buttons, combs, 

 brushes, and fertilizer. 



Sheep yield mutton and wool, and, if properly cared for, make 

 good money returns. They thrive on scanty vegetation and 



in pastures too poor 

 for cows, but in winter 

 their quarters must be 

 as carefully kept as 

 those of the cow. Our 

 finest clothing is made 

 of pure wool and among 

 our choice meats are 

 roast lamb and lamb 

 chops (Fig 329). 



Pigs are raised* at 

 FIG. 329. - Merino sheep. practically every coun- 



try house. This is be- 

 cause they are easily cared for and because they yield, when 

 slaughtered, meat which is easily preserved as ham, bacon, and 

 salt pork. Pigs cost their owners little because they are fed 

 garbage (clean, whole- 

 some garbage), corn 

 fodder, and refuse, 

 such as potato peel- 

 ings and apple parings. 

 Because of the cheap- 

 ness and ease with 

 which they are kept, 

 they yield large profits 



FIG. 330. Pigs are profitable animals. 



(Fig. 330). 



In the United States horses are considered valuable because 

 they are good beasts of burden. The draft or working horse 

 has large hoofs, strong feet, short legs, and a heavy body. The 



