76 



SUBKIKGDOM VEETEBEATA. 

 Fig. 116. 



Fig. 117. 



Skeleton of Horse 



ox, and in their turn to be followed by the narrow-jawed sheep 

 with the cleft upper lip, enabling it to nibble where neither 



of the others could 

 thrust its wide 

 mouth. 



The Horse has 

 been so diversified 

 by domestication 

 as to defy all at- 

 tempts to trace its 

 origin.* It is 

 adapted to con- 

 stant movement 

 by having a simple 

 stomach without a 

 Equus cabaUus, Horse. gall bladder which 



* Careful research proves that there is not a distinctive Arabian breed often- 

 times considered the parent of the horse any more than there is a Persian or an 

 English one. 



