48° 47° 46° 45° 44' 



58° 57° 56° 55 



54° 53° 52° 51° 50° 49° 48° 47° 



Fjqube 25.— Surface water temperatures during the fourth cruise 



46° 45° 44° 43° 



] 10011°— 32. (Face p. 42.) No. 3 



