SMITHSONIAN MISCELLANEOUS COLLECTIONS 

 VOLUME 107, NUMBER 4 



Eoeblins Jf unb 



THE SUN'S 



SHORT REGULAR VARIATION AND ITS 



LARGE EFFECT ON TERRESTRIAL 



TEMPERATURES 



BY 

 C. G. ABBOT 



Research Associate, Smithsonian Institution 



(Publication 3893) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



APRIL 4, 1947 



