62 THE STRUCTURE OF MAN 



usually occurs soon after birth ; in most Apes, on the contrary, 

 much later. In Man the fusion first involves the facial portion 



FIG. 42. SKULL OF A TORCO, in which the temporal bone nearly reaches the 

 frontal. Between the two a narrow process of the parietal is intercalcated. 



FIG. 43. SKULL OF A TWO-YEAR-OLD CHIMPANZEE, in which the temporal bone 

 is to a considerable extent in apposition with the frontal ( fr. ). 



of the bone, its palatal part remaining for a long time, or even 

 permanently, marked off from that of the maxillary by a suture 

 or trace of a suture. The same is the case with the Anthropoids. 



