59° 58° 57° 56° 55° 54° 53° 52° 51° 50° 



Figure 38— Fifth cruise, April 19 to May 3, 1938, showing surface isotherms, track of Patrol vessel, and ice condil 



48° 47° 46° 45° 44° 



;. Figures indicate date that ice was sighted or reported. 



147469—40 (Face p. 66) No.? 



