PROTOHIPPUS. 



131 



Top, side, and palatal views of skull. 

 One-third natural size. Fig. 3, p. 137. 



Fig. 103. Original figures of "hypotype" (Gidley) of Protohippus perditm Leidy, Am. Mus. 10838, immature. 

 After Gidley, 190G. 



