Sy 58° Sr 56° 55° 54° 53° 



51° 50° . 49° 



45° 44° 43* 



59° 58° 57° 56° 55° 54° 53^ 52" 61° 50° 



FiGUBE 23.— Fifth cruise, May 19 to 31, 1938, showing surface isotherms, ice condllions, and track of i 



i« 48° 47° 46° 45° 44° 



Numbers indicate day on which ice was sighted or reported. 



140346—38 (Face p. 24) No. 5 



