W B. No. 1221 Issued January 1938 



U. S. DEPARTMENT OF AGRICULTURE -^'7 ^ 



WEATHER BUREAU ) 



Instructions to 

 Marine Meteorological Observers 





10: 



2; 





CIRCULAR M - MARINE DIVISION 

 Sixth Edition 



UNITED STATES 



GOVERNMENT PRINTING OFFICE 



WASHINGTON : 1938 



For sale by thejSuperintendent of Documents, Washington, D.C. - - - Price 25 cents 



