SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOLUME 71, NUMBER 3 



Ibobohins JFunb 



VARIATION IN SOLAR RADIATION AND 

 THE WEATHER 



(With Five Plates) 



BY 



H. HELM CLAYTON 



Introductory Note by C G. Abbot 



(Publication 2544) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



JANUARY 15, 1920 



