SMITHSONIAN MISCELLANEOUS COLLECTIONS 

 VOLUME 131, NUMBER 1 



Eoebling :f unb 



LEADING OPERATIONS OF THE 



SMITHSONIAN ASTROPHYSICAL 



OBSERVATORY, 1895 to 1955 



By 



C. G. ABBOT 



Research Associate, Smithsonian Institution 



(PUBUCATION 4222) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



SEPTEMBER 22, 1955 



P. 



