SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOLUME 95, NUMBER 11 



Hrtbur jfunb 



INFLUENCE OF PLANETARY CONFIGURATIONS 



UPON THE FREQUENCY OF VISIBLE 



SUN SPOTS 



BY 

 FERNANDO SANFORD 



Palo Alto, California 



(Publication 3391) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



JUNE 5, 1936 



