PLATE XXXVII. 
atural size- 
ze; 2 from 
4. — 
r As, astragalus; Ca, calcaneum, FIG. 
H Ope > l pri ace of superior molar tooth, nat. size. Fic. 5.— 
molar tooth of right side of ium peninsilatum Cope; grinding sur- 
ral size. Fic, 6.—The same of Protohippus castilli Cope; same 
rete a 
