98 ANNUAL EEPOKT SMITHSONIAN INSTITUTION^ 1915. 



DALL COLLECTION. 



Dr. William Healey Dall contributed 162 titles, at a cost of about 

 $60, as additions to the collection of books relating to mollusks which 

 has been brought together by him as curator of that division, as a 

 reference library. These and the publications previously received 

 now number approximately 7,662 titles. 



BOTANICAL LIBRARY. 



A large collection of botanical books, the property of Dr. Edward 

 L. Greene, Avhich had been on deposit in the United States National 

 Museum since 1904, was withdrawn during the year as it was imprac- 

 ticable to secure the sum of $20,000 required for their purchase. 



TECHNOLOGICAL SERIES. 



In this branch of the library, which has only recently been formed, 

 and which is cared for in the older Museum Building, special efforts 

 have been made to put the classes of publications in more conven- 

 ient places and to make them more accessible for consultation. Those 

 relating to music, ceramics, photography, and botany have been 

 critically examined, recatalogued, and put in order on the shelves. 

 Those of the following classes have not as yet been considered: Art 

 and architecture, physics, chemistry, history, literature, sociology and 

 economy, and political science. 



This branch of the library is very deficient in general reference 

 books, such as an exhaustive encyclopedic work, technical diction- 

 aries, and dictionaries of some of the foreign languages, and while 

 a few of these works can be purchased during the present year, there 

 will not be money available to secure them all. 



The additions to this part of the library numbered 1,061 volumes, 

 3,573 parts of volumes, and 2,631 pamphlets and 4 maps. 



The cataloguing for the year numbered 660 volumes, 1,131 pam- 

 phlets, and 4 maps, requiring 1,406 cards. The number of periodicals 

 entered on the records were 801 volumes and 6,253 parts of volumes. 

 Special efforts have been made to catalogue the entire collection in 

 the library, and until this is completed the record for cataloguing 

 will not cover the receipts. Books and pamphlets loaned during the 

 year, in addition to those from the general library, numbered 258 

 volumes and 346 pamphlets, while there were consulted in the read- 

 ing room about 520 publications. In addition to the work on the 

 catalogue, about 800 volumes and 7,000 pamphlets and parts of 

 volumes were filed on the shelves, to be added to the records later. 



In the scientific depository set of printed cards from the Library 

 of Congress about 30,000 were filed alphabetically by authors. This 

 index will be of great value when the subject cards are included, as 



