SMITHSONIAN MISCELLANEOUS COLLECTIONS 

 VOLUME 111, NUMBER 5 



Eoebling Jf unb 



1948-1949 REPORT ON THE 



27.0074-DAY CYCLE IN WASHINGTON 



PRECIPITATION 



BY 



C. G. ABBOT 



Research Associate, Smithsonian Institution 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



MARCH 8, 1949 



