59 



53° 



52* gr 50* 49° 48* 47° 46" 46* 44*. 



53° 52° 51° 50° 49° 48° 47° 46° 45° 44* 



FiOL'EE 17.— Dynamic current map from data collected April 19-26, 1634. 



98591—35 5 



