236 



BRANCH VERTEBRATA. 



FIG. 410 



and striking the face of the cliff three or four times 

 with its feet, it will land securely at the desired point.* 



At a suspicious sound, a flock will 

 stand for an incredible time as 

 quiet as the rocks around them ; 

 but at a signal of danger from 

 the sentinel, all are away with 

 the speed of the wind. 



The Gazelle (gazer > has an 

 elegant form ; black, round, and 

 thick horns ; large, dark, and lus- 

 trous eyes ; f and a swiftness so 

 great that the greyhound can not 

 overtake it, unless it halts through curiosity to face the d<jgs. 

 The Koodoo (kob'doo) is characterized by its curiously 



Fio. 411. 



"Ss 



A. (lor 1 COS. Gazelle. 



A. ku da. Koodoo. 



twisted horns. It inhabits South Africa, and is exceed- 

 ingly handsome and graceful. 



* Though Chamois-hunting among the Alpine fastnesses is attended with great 

 peril, so that in one instance, father, son, and grandson, successively perished 

 in the pursuit, yet the occupation is so fascinating as to be rarely relinquished. 



t These are so proverbially beautiful as to give rise to the expression " gazelle 

 eyed." (See Moore's "Lalla Rookh." " The Fire Worshipers.") 



