284 



MAN AND THE GLACIAL PERIOD. 



France and southern England, and the northern half of 

 North America. 



The Hippopotamus is at present a familiar animal 

 in the larger rivers of Africa, but is not now found in 



b 



Fig. 86.— Molar tooth of mammoth (Elephas primigenius) : a, grinding surface ; 

 b, side view. 



Europe. During the Glacial period, however, he ranged 

 as far north as Yorkshire, England, and his remains were 

 found in close association with those of man, both in 



Europe and on the Pacific 

 coast in America. Twenty 

 tons of their bones have been 

 taken from a single cave in 

 Sicily.* 



The mammoth and the 

 rhinoceros we know to have 

 been adapted to cold cli- 

 mates by the possession of 

 long hair and thick fur, but 

 the hippopotamus by its love for water would seem to 

 be precluded from the possession of this protective cov- 



Fig. 87.— Tooth of Mastodon 

 Americanus. 



* Prestwich's Geology, vol. ii, p. 508. 



