PLATE VII 





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Fig. 1. FROST SMOKE KISING FROM THE SEA 

 After young sea ice has been broken up by blizzard, McMurdo Sound, March 16, lOoH 



f Photo by David 



Fio. 2. ICE FLOWERS ON SEA ICE 



McMurdo Sound, March 28, 1008. The centres of the clusters are formed of the cryo-hydrates 



of sea water. The edges are formed of ice of the nature of hoar-frost. 



[Photo by Shackleton 



[To face p. 42 



