Text-fiff. 69. 



• A. — Front view of a fa?tal Ox skull about the fifth month. The pvemaxillre {P.M.) 

 reach the nasals (Na.), the frontals (Fr.) are long-, the panetals (Pa.) 

 narrow, and the interparietals (Jp.) lie between the panetals and supra- 

 occipital. Nat. size. 

 ."B. — Front part of same skull, to show relation of premaxilla? to nasals. Nat. size. 



