148 



ASSTNUAL REPORT SMITHSONIAN INSTITUTION, 1950 



to an appropriate authority elsewhere. This is by no means an unim- 

 portant part of the "diffusion of knowledge," and especially in terms 

 of good will, is a richly rewarding one. 



It is regrettable that no relief for the overcrowding of the library 

 can be reported. 



SUMMARIZED STATISTICS 

 Accessions 



Total re- 

 corded 

 volumes 

 June 30, 

 1950 



Asiropnysical Observatory (including Radiation and Organisms) 



Bureau of American Ethnology -- --. 



National Air Museum --- - 



National Collection of Fine Arts.. 



National Museum - 



National Zoological Park 



Smithsonian Deposit at the Library of Congress. 



Smithsonian Office 



Total.. - 



13, 673 



34,838 



126 



12, 175 



246, 401 



4,196 



582, 280 



33, 448 



927, 037 



Neither incomplete volumes of periodicals nor separates and reprints 

 from periodicals are included in these figures. 



Exchanges 

 New exchanges arranged 344 



107 of these were assigned to the Smithsonian Deposit in the Library of 

 Congress. 



Specially requested publications received 7, 016 



1,026 of these were obtained to fill gaps in the Smithsonian Deposit sets. 



Cataloging 



Volumes and pamphlets cataloged 6, 822 



Cards added to catalogs and shelflists 30, 006 



Periodicals 

 Periodical parts entered 16, 961 



Circulation 

 Loans of books and periodicals 12, 522 



This figure does not include the intramural circulation of books and 

 periodicals filed in the sectional libraries of the Museum. 



Binding 



Volumes sent to the bindery - 1, 511 



Volumes repaired in the Museum 1, 023 



Respectfully submitted. 



Leila F. Clark, Librarian. 

 Dr. A. Wetmore, 



Secretary, Smithsonian Institution. 



