156 



MARION AND GENERAL GREENE EXPEDITIONS 



53° 52° 51° 50° 49° 48° 47" 



' 53° 52° 51° 50° 49° 48° 47° 46° 



FiQUBB 111. — Dynamic topography 1,000-0 decibar surface, May 29-June 3, 1927. 



