LECT. iv NUMBER OF DOMESTIC ANIMALS 157 



destroy rats, and in ancient Egypt Lycaon pictus, a 

 wolf, was tamed, and during a long period made use 

 of as a dog. Similarly the jackal and lion were 

 tamed and used for hunting purposes, and many 

 species of antelopes were domesticated, being shut 

 up at night in stables, while during the day shepherds 

 led them about like ours with cows or sheep. But 

 the domestication of these various species was soon 

 abandoned, for while we notice these pictures in 

 many sepulchral monuments of the earlier periods, 

 they are no more to be seen in those of the more 

 recent epochs, these animals having doubtless been 

 superseded by others more useful and more easily 

 tamed. 



If we call domestic those animals which remain 

 voluntarily in man's dependence, while being of special 

 use to him, we perceive that their number is very 

 small. Excluding, of course, animals such as oysters, 

 clams, bees, silkworms, trout, salmon, and the fishes 

 which are the object of the pisciculturist's attention, 

 domestic animals are wholly comprised in two classes 

 those of mammals and birds. Among the birds we 

 have the ostrich, swan, goose, duck, turkey, pheas- 

 ant, peacock, guinea-fowl, common fowl, and pigeon. 

 Among mammals : guinea-pig, rabbit, cat, dog, hog, 

 horse, llama, camel, reindeer, sheep, buffalo, and ox, 

 and partly also the elephant. If to these twenty-three 



