100 LECTURE II. 



edges overlapping each other, hke the 

 blades of a pair of scissars, and seem well 

 calculated to cut in slices the food which 

 admits of such a division. The side front 

 teeth, which correspond to those teeth 

 in animals, called tusks and tushes, fangs 

 and venom teeth, are in the human sub- 

 ject, round in front, flattish behind ; they 

 increase in size as they project from the 

 gum, till having attained their greatest 

 magnitude, they become suddenly and ob- 

 tusely pointed. They have long roots 

 inserted deeply in the jaws, and the 

 pointed termination of their bodies pro- 

 jects a little beyond the level of the line 

 made by the edges of the other teeth. 

 These teeth seem well calculated for break- 

 ing into small pieces hard substances, and 

 thus preparing them for the action of the 

 grinders. All the back teeth in the human 

 subject are grinders, and there are two 

 small and three large on either side, in each 

 of the jaws. 



That nature meant man to grind his food 

 by means of his teeth, is to be inferred, not 



