124 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1926 
zuela, Warsaw, and Ziirich; and from technical schools at Berlin, 
Charlottenburg, Geneva, Karlsruhe, and Ziirich. Fewer disserta- 
tions than usual came from Germany, Austria, and Switzerland. 
Instead, the library received from the universities in those countries 
hundreds of abstracts, each giving merely the author’s name, the 
subject of the paper, and a brief summary of its contents. 
OFFICE LIBRARY 
The office library, which consists chiefly of some of the more fre- 
quently used society publications, the aeronautical collection, the art- 
room collection, the employees’ library, and various books, mainly of 
a reference nature, in the administrative offices, was increased during 
the year by 243 volumes, 1 part of a volume, and 18 pamphlets. Of 
these, 54 were added to the aeronautical collection. It may be stated 
in passing that this collection, owing to its rapidly growing impor- 
tance, will soon be raised to the dignity of a division—the tenth by 
number—of the Smithsonian library and named the Langley Aero- 
nautical Library in memory of the third secretary of the Institution, 
whose researches and experiments marked the successful beginning 
of aeronautics in the United States. 
Many important books were received during the year, but the out- 
standing one was probably the North American Indian, volume 13, by 
Edward S. Curtis, presented by Mrs. E. H. Harriman. This was 
deposited with others of the series in the library of the Bureau of 
American Ethnology. 
The circulation, which showed a considerable gain over the previ- 
ous year, was 2,618. Of this number, 2,183 were magazines. A 
corresponding increase was apparent in the number of books and 
periodicals consulted in the reference room, those most in demand 
being the aeronautical collection and the transactions of the learned 
societies. 
It is gratifying to report that, after a lapse of nine years, binding 
was resumed for the office library. Of the 172 volumes bound, 41 
belonged to the exhibition set of Smithsonian publications. 
The work done in connection with the general catalogue of the 
Smithsonian library, which is kept in the office reading room, was 
as follows: 
Wiolumes*eataloeued Late peg Wit eM re eae eee LAI LS 3, 495 
Volumesi;recatalosueduis. 22 iio Maina ee Se ee ee 134 
Charts } Cavallo ime dss eh le ay ew A Beye Ae ee pa aide SY bre eae ag en ee 403 
TOS Eye ie aN NU SI I a, a a ee 1, 525 
Libpary sor \;Congress.:eands) file@ si 4s sxe eh ee el _ a 688 
INGW. BULDOFS' Paes oe TL pale ah INN ae fd ANCA Vet ae 348 
