59° 58° Sr 56° 55° 54° ,53° 52° 51° 50° , ,^^° , , ,^° ^^° ^', „ ,^^° ^° 43' 



59° 58° 57° 56° 55° 54° 



51° 50° 49° 48° 47° 46° 45° 44° 43° 



FIGURE 2.- ICE CONDITIONS AND SURFACE ISOTHERMS FOR THE PERIOD 1-15 APRIL, 

 1952. FIGURES INDICATE DAY OF MONTH ICE WAS SIGHTED OR REPORTED. 



260173 O - 54 (Face p. 12) No. 2 



