JiGo: 



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



Mace isotherms, ice conditions, and traclc of patrol vessel May 26-June 9, 1«34. Isotherms are based on 978 temperature reports. Numbers indicate day on which ice was reported. Noon positions are reprft-wntn* 



by blacli circles. 



9S691— 35. (Face p. 18.) No, 5 



