n" 
  
  
  
            
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| Figure 3 - Close-up view of several years old Polar Pack in the Beaufort sea at the north coast of Alaska on 
| August 18th, 1955. The ice is as hard as steel. Notice, please, the submerged parts of the floes, projecting 
as dangerous rams, Erosion at the water line and the melting of the upper ice layers explain the development 
i of the ram. Photograph by Captain Ragnar Thorén, R.Sw.N. 
  
  
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