Chap. 6.] Varieties in the -Teeth of Animals. 109 



different races than the teeth. This circumftance is 

 fo remarkable, that Linnasus has employed it in the 

 diftribution of the firft clafs of animals (the mammalia) 

 into its feveral orders. To enumerate all the varieties 

 of teeth would be impofiible, and at prefent it would 

 be fuperfluous. Let it be remarked, however, that 

 they are not without their ufes, and that every animal 

 experiences the advantages of its own peculiar ftruc- 

 turc. 



