CAMELS. 247 



upper lip of the camel is cleft and enlarged ; the side of 

 the foot is covered with a thick, indurated skin ; the 



FIG. 186. 



DROMEDARY. 



back bears a lump of fat which is single or double, 

 according to the species. The digestive system of 

 the camel differs from that of the other ruminants 

 in that there are but three stomachs, the psalterium 

 being absent. The interior of the paunch is lined 

 with large cells, and it is said that the camel can store 

 water in these cells and so go many days without 

 drinking. 



There are two species of camel : the two-humped 

 camel or Bactrian camel of Central Asia, which is not 

 found far from the immense plains where dwell the 



