284 JOSEPH PEESTWICH^ F.E.S., F.G.S., ON A POSSIBLE 



The annexed short table will serve to show the chrono- 

 logical relation of the Rubble-drift to the other Drift and 

 Alluvial beds : — 



Alluvial Beds 



Rubble-drift 



Valley - Gravels 

 and Caves of 



Post 



Age. 



■laci 



Containing the remains of the existing 

 Fauna and of Neolitliic Man. 



["Containing the scattered remains of a 



-< Post-glacial Land surface and Fauna 



^^ with scarce traces of Palwolithic Man. 



With abundant remains of the late 

 Quaternarij Fauna, including the great 

 extinct Mammalia (Mammoth, Woolly 

 Rhinoceros, various Deer, Horse, 

 Bovidas, &c.), together with a large 

 J lumber of rude Stone Implements of 

 Pala'olithic Man. This Fauna marks 

 the close of the Glacial Period (taking 

 its divisions to be Pre-glacial, Mid- 

 glacial, and Post-glacial). 



England and North of France had undergone submergence and re-elevation 

 at a comparatively recent period. Later on, it was the recognition of 

 similar phenomena elbe^^hel■e on the Continent ■which led me lo extend 

 this conclusion. 



