PLATE IV. 



Imperfect skull of Bison antiquus (probably a female) from St. Michael's, Alaska. (Specimen received 

 from the California Academy of Sciences, through W. G. W. Harford, Es^., Director of the Academy.) 



Fig. 1. Occipital view. (One fourth natural size.) 

 Fig. 2. View from above. (One fourth natural size.) 



