EXTINCT ANIMALS 



or not. Though hke a monkey's, a man's tooth 

 can be distinguished from it and from all other 



Fig. 52. — Pliotograph of a preparation (in the Natural History 

 Museum) of the upper and lower jaw-bone of man, the 

 bone cut away so as to show the fangs of the teeth. The 

 pattern of the crowns of the molars is well seen in the 

 upper and lower figures. 



teeth. In the next figures we have photographs 

 showing certain modifications in the teeth of 



80 



