59° 58' 57° 56° 55° 54° 53° 52° 51° 50° 49° 48° 47 



FIGURE 6.- SURFACE ISOTHERMS FOR THE PERIOD 1-15 JUNE, 1952. NO ICE WAS 

 SIGHTED OR REPORTED WITHIN THE LIMITS OF THIS CHART DURING THE PERIOD. 



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



