34 



POLAR PROBLEMS 



Fig. 6 — Mean air pressure in the North Atlantic in June-July during years with an abundance of ice 

 in Barents Sea in August. (After Wiese, first work cited in footnote ir, as reproduced in third work 

 there cited.) 



Fig. 7 — Mean air pressure in the North Atlantic in June-July during years with a scarcity of ice in 

 Barents Sea in August. (After Wiese, same source as Fig. 6.) 



to be solved is whether the abnormal distribution of pressure is due 

 to the ice conditions or whether the ice conditions are due to an 



