SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOLUME 98, NUMBER 21 



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1939 



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THE WEEKLY PERIOD IN WASHINGTON 

 PRECIPITATION 



BY 



G. G. ABBOT 



AND 



N. M. McGANDLISH 



Smithsonian Institution 



(Publication 3547) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



JULY 27, 1939 



