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GENERAL ZOOLOGY 



a long warm period (Table I) when animals from southern 

 countries invaded the land. In. the deposits left during 

 the first interglacial period eoliths, or unchipped stone 

 fragments, occur which may have been formed by men, but 



most archaeologists believe that they are not of human 

 origin. In the long second interglacial period the Heidel- 

 berg race lived in central Europe. The men of this race 



