^^ 1 



51° 50° 49° \ 



"I ' I /!'} \ 



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



Figure 39— Sixth cruiso, May 3 to 17, 1938, showing surface isotherms, track of Patrol vessel, and ice conditions. Figures indicate date that ice was sighted or reported. 



14T:69— 40 (Face! 



