Photo by Edmund Heller. 



Fig. 109. \\'eathered shells of antelope horns, the tips of which have been 

 gnawed bv rodents. These are cast in late autumn. 



Ph:.f:. '-V Edm:nid Hcllc 



Fig. no. An antelope that has recently shed his horns. The horn cores and 

 new sheaths, their basal half covered with fine hair, as thej- appear in 

 Xovember. 



