Fig. 12 



Fig. 12 — Ice fields and ice floes, northeastern part of Kara Sea, August, 1900. (Photograph by 

 F. A. Matisen in Kolchak's " Ice of the Kara and Siberian Seas, " PI. S, Fig. 2.) 



Fig. 13 — GlaQons in the sea west of Graham Land, Antarctic. (From H. Arctowslii's "Glace 

 de mer et banquises, " PI. i.) 



Ill 



