?IG0K: 



-Surlaco Isotherms, 



58- 



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



Ico conditions and track or patrol vessel AprU 12-29, 1934. Isotherms are base^d^on l.OSS toperature reports. Numbers indicate day on which ice was reported. Noon positions are rep 



98691—36. (Face p. 18.) No. 



