59' 58" 57° 56° 55° 54° 53° 52° 51° 50° 49° 48° 47° 46° 45' 44° 43° 



Figure 19.— Eleventh cruise, August 10 to 23, 1939, showing surface isotherms, track of veiscl, and ice conditions. (Numerals indicate day of month ice was sighted or reported.) 



220899 — 40 (Face p. 34) No. 



