THEORY OF THE EARTH. 



The anterior molares are short cones, slightly 

 compressed, and with two roots. Its canine teeth 

 are small. Neither its incisors nor its feet are yet 

 known. I possess only one species, which is of 

 the size of a Siam hog *. 



The genus Adapis has also but one species, 

 which is at most of the size of a rabbit : it is also 

 from our gypsum quarries, and must have been 

 nearly allied to the anaplotheria f . 



We have thus nearly forty species of pachy- 

 dermata belonging to genera now entirely extinct, 

 and presenting forms and proportions to which 

 there is nothing that can be compared in the pre- 

 sent animal kingdom, excepting two tapirs and a 

 daman. 



This large number of pachydermata is so much 

 the more remarkable, that the ruminantia, which 

 are at present so numerous in the genera of deer 

 and antelopes, and which attain so great a size in 

 those of the oxen, giraffes, and camels, scarcely 

 make their appearance in the deposits of which 

 we are speaking. 



I have not seen the slightest trace of them in 

 our gypsum quarries; and all that has come to 

 my hands consists of some fragments of a deer, of 



* " Researches," vol. iii. p. 260. 



t Id. vol. iii. p. 265. 



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