176 



LECTUKE VII. 



projecting edges. But in no case is the prognathism of the 

 Negro solely confined to the position of the teeth and their cavi- 

 ties, it is the jaw which constantly contributes towards the pro- 

 jection of the muzzle. An intei'val, though of small extent, is 

 not rarely seen in the upper jaw between the incisors and the 



Fig. 64. Negro Skull, side view. 



canine teeth. Soemmering found in some Negro skulls a sup- 

 plemental molar in the upper jaw; two anomalies, which to 

 our knowledge, have never been observed in Germanic skulls. 

 This diastema reminds us of the ape in general. The additional 

 molar in the upper jaw, by which such Negroes have thirty- 

 four instead of thirty-two teeth, reminds us of the American 

 monkeys in particular, which have thirty-six teeth, the increase 

 extending to the lower jaw. 



The osseous palate is not only absolutely longer, but abso- 

 lutely broader than in the white, and these circumstances indi- 

 cate the exceptionally great development of the jaws in general. 

 The zygomatic arches are curved and wide, so that the tern- 



