The papers in the Abbott collection appear to have been brought together in the Smithsonian's Department of Anthropology in order to process ethnological specimens from Malaya and Indonesia and to prepare an exhibit and publications. Included are some of Abbott's original letters, notes, maps, and a considerable number of photographs. Most of these materials concern the Enggano, Jakun, and Dyak. Many other documents in the collection consist of copies of or extracts from Abbott's letters, the originals of which are now in the Smithsonian Institution Archives. There are also letters and other materials of Otis Tufton Mason and Walter Hough accumulated as they worked on the collection, many simple lists of accessions compiled in the Department of Anthropology, and a few manuscripts. In addition, there are printed materials that were apparently used by the department's staff for reference purposes. Some of the photographs made in Borneo in 1914 are by Henry Cushier Raven, a field assistant of Abbott and, later, a collector financed by Abbott. Additional materials of Abbott and Raven are in the Smithsonian Institution Archives, and their material (often duplicate photographs) are included in several collections in the National Anthropological Archives.

This finding aid was digitized with funds generously provided by the Smithsonian Institution Women's Committee.

The Department of Anthropology records contain administrative and research materials produced by the department and its members from the time of the Smithsonian Institution's foundation until today.

The papers of Aleš Hrdlička, curator in the Division of Physical Anthropology, Department of Anthropology, United States National Museum of the Smithsonian Institution, offer considerable insight into the development of physical anthropology in the first half of this century. The papers include honors bestowed on Hrdlička, autobiographical notes, correspondence with many of the leading anthropologists of the day, anthropometric and osteometric measurements and observations (forming most of the collection), extensive photographs of Hrdlička's field work, manuscripts, research materials, and "My Journeys" (essentially a diary Hrdlička kept of his field work). In addition, there is material of a personal nature. The papers date from 1875 to 1966, but the bulk of the materials date from 1903 to 1943, the time of Hrdlička's career at the USNM.

The Technical Reference Files comprise an artificial collection that currently contains 1,900 cubic feet of aviation and space related materials, organized in 22 subject series. File materials include photographs, press releases, clippings, correspondence, reports, and brochures, on individuals, organizations, events, and objects.