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



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



Figure 14. — Ice conditions, April 1957. Figures indicate day of month ice was sighted or reported. 



