THE AMERICAN BISON 



185 



supposed to have been naturally an inhabitant of the 

 British Isles. 



A number of other forms must here, for convenience' 

 sake, be grouped together as antelopes. Like all the 

 kinds yet noticed they have hollow horns supported on 

 bony cores, and neither the horns nor the cores are ever 

 shed. They are mostly Old World forms, while none are 

 met with in South or Central America. Among the 



FIG, 48. 



'*:*'' 



THE ROCKY MOUNTAIN GOAT. 



few American species is that known as the " Rocky 

 Mountain goat," which inhabits the northern part of 

 California, while the chamois is an inhabitant of Europe 

 from the Pyrenees to the Caucasus, ascending to the limit 

 of perpetual snow. A multitude of species come from 

 southern Africa, such as the hartebeest, the blessbok, the 

 bontebok, the springbok, the curious gnu with its ox- 

 like head and delicate feet, the duilkerbok, Salt's antelope, 

 the royal antelope, the rehbok, the waterbok, the singsing, 



