50° 49° 48° 47° 46° 45° 44° 



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



Figure 19.— First cruise, March 23 to April 4, 1936, showing surface isotherms, ice coaditlons, and track of vessel. Numbers indicate day on which ice was sighted or reported. 



149346—38 (Pace p. 24) No. 1 



