282 O. GJ^REVOLL 



chromosomal structure between the various south Norwegian races equal 

 the differences between races of southern Norway, northern Norway, and 

 the Faeroes as well as Iceland. Consequently, the south Norwegian races 

 must have been separated during a period of about the same duration as 

 that which divided the different races in the area surrounding the North 

 Atlantic Ocean, i.e. they must have been separated for a period much longer 

 than that of the Post-glacial time. 



The studies performed by Dr. Knaben as well as her conclusion strongly 

 support the hypothesis of nunatak survival. The distribution of the different 

 races cannot be explained by referring them to coastal survival areas with a 

 subsequent group migration to their present locahties. 



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