EEPORT OF THE SECRETARY 79 



OFFICE LIBRARY 



The office library consists mainly of books of reference and sets 

 of the publications of the Institution and its bureaus and of other 

 learned institutions and societies. It also contains a collection of 

 general literature, including files of semipopular magazines. To 

 this library were added during the last year 132 volumes and 47 

 pamphlets. The assistants in charge entered 2,889 periodicals, pre- 

 pared 477 cards for the catalogue, filed 1,938 shelf-list and cata- 

 logue cards, and loaned 3,070 publications. Besides members of the 

 staff, there were 644 visitors, many of whom came for information 

 about the activities and collections of the Institution. 



BUREATT OF AMERICAN ETHNOLOGY LIBRARY 



The library of the Bureau of American Ethnology is made up 

 largely of works on the archeology, history, customs, languages, and 

 general culture of the early American peoples, notably the North 

 American Indian. The library has 30,071 volumes and 16,867 

 pamphlets, together with thousands of unbound periodicals and 

 numerous photographs, manuscripts, and Indian vocabularies. The 

 additions during the year were 400 volumes and 150 pamphlets. The 

 number of periodicals entered was 3,400; of cards prepared for the 

 catalogue, 5,004; of volumes bound, 200; and of loans made, 2,15G. 

 The reference service of the library was unusually large, both to 

 Smithsonian scientists and to students and others outside the Insti- 

 tution. 



ASTROPHTSICAL OBSERVATORY LIBRARY 



The library of the Astrophysical Observatory is a working collec- 

 tion of 4.357 volumes and 3,467 pamphlets, chiefly on astrophysics 

 and meteorology. The accessions for the year were 169 volumes and 

 275 pamphlets. The number of periodicals entered was 951, and of 

 publications obtained in exchange by special request 84. The loans 

 were 106. 



RADIATION AND ORGANISMS LIBRARY 



The library of radiation and organisms, begun in 1929, was in- 

 creased during the year by 96 volumes. Among these was almost a 

 complete set of Science, which was made up largely from duplicates 

 already in the possession of the Institution. The number of publi- 

 cations received in exchange in response to special requests was 43. 

 The periodicals entered were 658. The library now has 190 volumes, 

 9 pamphlets, and 6 charts. 



LANGLEY AERONAUTICAL LIBRARY 



The Langley aeronautical library, which for the most part has 

 been on deposit since 1930, under its own name and bookplate, in 



