THE PRE-ADAMITE EARTH. 



that' Sir R. Murchison assigns the date of the disruption of the 

 earth's crust, which produced the Ural chain of mountains. 



Fig. 145. Lepidodendron Sternbergii. 



M. Elie de Beaumont assigns to the same epoch the convulsions 

 which produced the system which he has designated that of the 

 North of England (211), the prevailing direction of which is 

 52 



