CO S3 Sa ST S6 59 



GENERAL CHART 



COVEIRIISO 



ICE PATROL 



^- BERSS 



o-sRowuEBs. MARCH \Z-Zi,, H30. 



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



GRAND BANKS 7-^0 TEMPERATURE REPORTS. 



FiansE 4.— Surface temperatures and other conditions. March 12-26, 1930 



18732—31. (Face p. 4.) No. 3 



