69 



much softer as wholly to have disappeared, 

 except the grinders and some tusks, while such 

 numbers of the former still remain in 2-ood 

 preservation. 



It is not sufficiently known that there have 

 been large graminivorous teeth found in 

 America 5 and by those who know it the pro- 

 per inferences are not generally formed. That 

 there are found in America teeth similar to 

 those discovered in Siberia, proves either that 

 the same animal has inhabited the two coun- 

 tries, and therefore that there must have been 

 at somie period a communication, or that a 

 delucre has deDOsited some of tlieir carcasses 

 in America ; but, from the paaclty of their 

 remains, compared with the astonishing num- 

 bers discovered in Siberia, whence they have 

 long been taken as an article of commerce^ 

 and still continue abundant, it it certain, that 

 if they did inhabit America, it had been but 

 for a short time ; or they originally inhabited 

 America, and thence spread into Siberia, and 

 were destroyed in America antecedent to their 

 destruction in Siberia : for it: must be a;nia 

 remarked, that while their remains (pait:::a- 



