During the year 600 volumes were accessioned, of which 97 were acquired by purchase, 100 by binding of periodicals, and 403 by gift and exchange; also 190 pamphlets and 3,500 serials, chiefly the publications of learned societies, were received and recorded, of which 28 were obtained by purchase, the remainder being received through exchange, giving us at the close of the year a working library of 26,671 volumes, 16,717 pamphlets, and several thousand unbound periodicals. Books loaned during the year numbered 975 volumes. During the year 473 volumes were bound. In addition to the use of its own library, which is becoming more valuable through exchange and by limited purchase, it was found necessary to draw on the Library of Congress for the loan of about 250 volumes, and in turn the bureau library was frequently consulted by officers of other Government establishments, as well as by students not connected with the Smithsonian Institution. The purchase of books and periodicals has been restricted to such as relate to the bureau’s researches. During the year the cataloguing has been carried on as new accessions were acquired and good progress was made in cataloguing ethnologic and related articles in the earlier serials. The catalogue was increased by the addition of 3,500 cards. A considerable amount of reference work was done in the usual course of the library’s service to investigators and students, both in the Smithsonian Institution and outside. COLLECTIONS Accession No. 111046. Human skeletal material from a gravel bed along the Patuxent River, Md., collected by T. Dale Stewart on June 16, 1930. (12 specimens.) 111697. About 100 crania and parts of skeletons from Safety Harbor, Fla., collected by M. W. Stirling. (139 specimens.) 111961. Miniature clay toys made by Navajo Indian children and collected by Dr. W. H. Spinks at Chin Lee, Ariz., and 15 snapshots. (37 specimens.) 112277. Collection of 802 ivory specimens, etc., secured by Dr. A. Hrdlička along the Kuskokwim in 1930 from funds supplied by the bureau. (802 specimens.) 112393. Archeological and skeletal material collected by Dr. F. H. H. Roberts, jr., during the summer of 1929 from a site in Arizona. (553 specimens.) 112888. Archeological material from the vicinity of Tampa Bay, Fla., collected by M. W. Stirling in 1930. (115 specimens.) 114648. Skeletal material from Horr’s Island, Collier County, Fla., collected during February and March, 1931, by M. W. Stirling. (150 specimens.) PROPERTY Office equipment was purchased to the amount of $571.25. MISCELLANEOUS