

■^- BERSS. 

 O-SR0WLER8. 

 llMl- FIELD ICE. 



GENERAL CHART 



MAY <^-2A, 1^30. ICE°PAfROL 



SHOWING SEA-WATER TEMPERATURES AND VARIOUS CONDITIONS IN VICINITY ISOTHERMS BASED ON 



GRAND BANKS 1^00 TEMPERATURE REPORTS. 



FiouHE 8.— Surface temperatures and other conditions. May 9-24, 1930 



18732—31. (Face p. 4.) No. 7 



