3 



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



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



Ice ^or ditions March 1957. Figures indicate day of month ice was sighted or reported. 



