ANTARCTIC ADVENTURE AND RESEARCH 



shown herewith (see Figure 26). Since most life 

 hibernates during the winter in polar regions, it is of 

 relatively little importance how cold the climate in this 

 season becomes. Hence the very large area with a 



Fig. 2^. — Summer and winter temperatures in Ant- 

 arctic AND Arctic regions. 



Compare isotherms of 48 deg. F. in A and B, showing the very 

 cold summer in the Antarctic. (After G. PhiHp.) 



temperature below freezing in winter around the North 

 Pole (see D, Figure 26), has little effect on animal or 

 plant growth. 



We have no data as to the temperatures in the heart 

 of the Antarctic continent except in midsummer. The 



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