198 Darwin, and after Darwin. 



position (B). " The skull exhibits a partial attenua- 

 tion anteriorly, the premaxillaries are directed about 



FlG. 88. Skulls of A, Canadian Stag ; B, Cervakes Americanus; 

 and C, Elk. (After Heilprin.) 



equally downward and forward, and the nasal bones 

 are measurably contracted in size. The horns like- 



