394 



PALEONTOLOGY. 



of the skull is truly extraordinary, and exemplifies the maxi- 

 mization of dental development. 



The mammoth is more completely known than most other 



extinct animals by reason of the discovery of an entire speci- 

 men preserved in the frozen soil of a cliff at the mouth of the 

 river Lena in Siberia. The skin was clothed with a reddish 



It is now preserved at St. 



wool, and with long black hairs 



