59° 58° 57° 56° 55° 54° 53° 52° 



50° 49° 48° 47° 46° 45° 44° 43° 



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42° 



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•ICE 

 MAR 



CHART 



CH I 



955 



40° 



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"T5^ 



"V„ 



39° 



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59° 58° 57° 56° 55° 54° 53° 52° 51° 50° 49° 48° 47° 46° 45° 44° 43° 



PUjure .9 — Ice conditions, March 195.5. Figures indicate day of month ice was si{/hted or reported. 381304 0-56 (Face p. 6) No. 1 



