PACHYDERMES. 103 



The value of ivory is well known ; it is supplied 

 principally from the tusks of the Elephant ; and 

 to obtain this small but valuable portion of these 

 immense creatures, many personal risks are in- 

 curred, and great and indiscriminate slaughter 

 is often made. The teeth of the Hippopotamus 

 yield a closer grained and harder material than 

 the tusks of the Elephant, and are preferred 

 by dentists for artificial teeth, and for subjects 

 which require great delicacy of carving. An 

 immense quantity of ivory reaches China, and 

 is again exported, carved into many beautiful and 

 ingenious articles. We may also just mention 

 the very useful, though common articles procured 

 from other animals of the Pachydermes, hog's 

 lard and pig's bristles ; nor should we neglect the 

 beautiful and lustrous article, pig's hair, sometimes 

 difficult to be procured, but always in high request 

 by the angler. 



We shall now examine the members of the dif- 

 ferent genera separately, and commence with 



