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



Fir.uRB 49.— Third cruise, 17 April to 1 May 1940, showing surface isotherms and track of patrol vessel. 740743 o - 47 (Face p. 142) No. 



