OF EVOLUTION. 73 



In the stag, it will be observed, the skull is high, 

 and shows but little of that anterior attenuation 

 which is such a distinctive feature of the skull of 

 the elk. The nasal bones (N) of the former, again, 

 are remarkably long when compared with the sim- 



Head of Cervalces A mericanus. Specimen in the Museum of 

 Princeton College. 



ilar bones of the latter, and the premaxillaries(pMx), 

 instead of being projected forward along the hori- 

 zontal plane of the base of the skull, are deflected 

 sharply downward. In all these points, it will be 

 seen, the newly discovered form (Cervalces) holds 



