59° 58° 57° 56° 



50° 49° 48° 47° 46° 45° 44° 43° 



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



FiotTBE 16. — Ice conditions June 1960. Figures indicate day of niontli ice was siglited or reported. 



