59°^y ^ _^57°__^ 56° 55°-^^^^&4°^ _^^gl__^° gL^.^u^^^^, '^^° 48° ,47° 46°' 45° 44° a^' 



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



Fir.iRE 13— Fifth cruise, ice patrol, .lc«s/inf^ 3-10 June 1950, showing suitacf isotherms. 955984 O- 51 (Face p. 20) No. 6_ 



