CAMELS. 385 



harder than that of other quadrupeds, and is applied to many 

 purposes in the arts and domestic economy. Their skin, prepared 

 by tanning, furnishes nearly all the leather we use; their horns, 

 their blood, their bones, even their intestines, which are manu- 

 factured into strings, are all serviceable to us. When living, 

 many of them are employed as beasts of burden, equally valuable 

 in commerce and in agriculture. 



This Order may be divided into two sections. The first com- 

 prises such Ruminants as are without horns ; the second, Rumi- 

 nants with horns, either in both sexes or in the male only. 



RUMINANTS WITHOUT HORNS. 



Ruminants which are entirely without horns also differ from 

 other Ruminants in their teeth, and somewhat resemble the 

 Pachydermata. They are the Camel and the Musk. 





FIG. 426. ARABIAN CAMEL. 



The Camels (Camelus], comprehending Camels properly so called and 

 Llamas, differ from all other Ruminantia in having only six incisor teeth in 

 the lower jaw. Their feet are not cloven, and have very small hoofs ; the 

 neck is very long, the limbs by no means elegant in their proportions, and 

 their upper lips swollen and cleft. 



The Camels proper are peculiar to the Old World. There are two species of 

 these useful animals, the Bactrian Camel ( Camehts Bactrianus], a native of Central Asia, 

 distinguished by having two humps upon his back, and the Arabian Camel (Camelus 

 Dromcdarius), which has only one. The species last mentioned is common in Arabia, 



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