164 



MARION AND GENERAL GREENE EXPEDITIONS 



51° 50° 49° 48° 47° 46° 45° 44° 43' 



51° 50° 49° 48° 47' 46° 45° 44° 43° 



Figure ll'J. — Dynamic topo^iraphy 1,000-0 decibar surface, April 10-20, ID-iij. 



