59° 58° Sr 56° 55° 54° 53° 52' 



50° 49° 48° 47° 46° 45° 44° 



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



Figure 13. — Ice conditions, May 1961. Figures indicate day or month ice was sighted or reported. 



