154 



MARION AND GENERAL GREENE EXPEDITIONS 



55° 54' 



53° 52° 51° 50° 49° 48° 47° 



SS" 54° 53° 52° 51° 50° 49° 48° 47° 



Figure 109. — Dynamic topography 1,000-0 decibar surface, April 21-25, 1927. 



