AMELIORATIONS OF PRESENT ARCTIC CLIMATES 379 



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Fig. I. — Photographic reduction of map of the North Atlantic Ocean issued by the 

 Institut fiir Meereskunde der Universitat Berlin (191 2). Original in colors. Oceanic 

 depth in meters: contours= -100, -1,000,-2,000,-3,000-4,000-5,000,-6.000-7,000, 

 -8,000, over 8,000. 



