Primary source materials for the history of quantum physics in the twentieth century, collected under the auspices of the APS and the American Physical Society, with a grant from the National Science Foundation. There are transcripts of the oral history interviews, as well as the working papers of the Committee. These include correspondence with famous figures in physics, with some memoirs, photographs, lectures, etc. On microfilm (see Mss. 530.1 Ar2 ) are manuscripts of Niels Henrick David Bohr and his scientific correspondence (62 reels from the Niels Bohr Archives, Universitets Institut for Teoretisk Fysik, Copenhagen). This collection is described and analyzed in Sources for the History of Quantum Physics: An Inventory and Report, by Thomas S. Kuhn, John L. Heilbron, Paul Forman, and Lini Allen (Philadelphia, 1967). The subject guide derived from the work has subsequently been digitized in its entirety and is available through the finding aid for Mss. 530.1 Ar2 .

The cytogeneticist John Belling (1866-1933) developed the iron-acetocarmine staining technique, which facilitated detailed study of chromosomal structures. In his work with Arthur F. Blakeslee at Cold Spring Harbor on Datura (1920-1927) and at the University of California, Berkeley (1928-1933) on lilies, hyacinths, and other plants, Belling made accurate estimates of chromosomal numbers, helped to demonstrate the interchange of segments between non-homologous chromosomes, and proposed that the chromomeres (small condensations of stain that appeared along the length of chromosomes) represented individual, physical genes. Although he was a gifted technician and insightful cytologist, his career was hampered by mental instability and curtailed by frequent hospitalizations before his sudden death in 1933. The Belling Collection consists of four photograph albums, 38 glass slides and approximately 75 glass negatives and positive prints of chromosome preparations made by Belling, primarily during the years at Berkeley, along with an annotated bibliographic card file. The images in the albums are fully identified, but most of the glass slides are not.

The French Académie des Sciences organized a total of ten expeditions to observe the transit of Venus in 1882, including parties that set up in Haiti, Martinique, Mexico, Florida, Chile, and Cape Horn. The expedition to Santa Cruz on the Patagonian (Argentine) coast was led by the naval officer Georges-Ernest Fleuriais (1840-1895), director of the Cartography Department of the French Navy. Aboard the ship Volage, Fleuriais sailed to Argentina and made observations of the transit just before Venus passed its ascending node on December 6, 1882. The 31 albumen photographs bound into the album titled "Passage de Venus 1882 -- Mission de Santa Cruz (Patagonie)" document a French astronomical expedition of that year to the Argentine coast. Rather than photographs of the transit itself, the album contains images of the members of the expedition, the crew of the Volage, and the base camp. Only a few images contain captions (written in pencil on the mount).

A geographer from Ohio State University, Eugene Van Cleef was a specialist on Finns and Finnish immigrants to the United States, on the applications of geography to foreign trade and international commerce, and a pioneer in urban geography. The Van Cleef Papers contain 5 linear feet of personal and professional correspondence and other materials reflecting Van Cleef's varied interests in applied geography, foreign trade, and Finns. Of particular note is an autobiographical manuscript, discussing the intellectual origins of his interests in geography and giving a concise perspective on his views of the discipline.

As a young graduate student at the University of Berlin in 1912, Eugen Teuber (1889-1958) was hired to help establish the Anthropoiden Station auf Teneriffa (Tenerife Primate Station) for the Prussian Academy of Sciences, the first field station devoted to behavioral research on primates. As its first director, Teuber played a crucial role in setting up the facilities and acclimating the chimpanzees to their new environment, and he was a co-participant in the first trials of Wolfgang Köhler's famous experiments to evaluate the intelligence of apes. The papers of Eugen Teuber document the founding and earliest years of the Anthropoiden Station auf Teneriffa. A small (0.5 linear feet), tightly focused collection, it contains a series of official documents relating to the establishment of the Station, approximately 20 letters between Teuber and officials in Berlin, including Wilhelm Waldeyer and Max Rothmann, some research notes, and over 100 photographs of the chimpanzees and facilities. The collection includes Teuber's notes on the first trial of Wolfgang Köhler's famous "fruit basket" experiment in December 1913.

A physicist and social activist, Edward G. Ramberg contributed to the early development of electron microscopy and color television, and devoted much of his life to pacifist and Quaker causes. Born in Italy to an American mother and German father, Ramberg experienced the losses of war firsthand during the First World War when his father was killed while serving with the German army. After moving to the United States with his mother, Ramberg attended Reed College and Cornell University before returning to Germany for postdoctoral study under Arnold Sommerfeld. Employed at RCA for most of his career (1935-1972), Ramberg refused any involvement in military or war-related research, and as a conscientious objector during the Second World War, was assigned to duty in Civilian Public Service camps. He continued to work in fostering social harmony until late in life. With his wife, Sarah Sargent, a Swarthmore graduate whom he met through the American Friends Service Committee, Ramberg helped to establish Bryn Gweled, a cooperative community in which people of various religious, social, and racial backgrounds lived and worked together. The bulk of the Ramberg papers consists of files pertaining to his work with Amnesty International, the American Friends Service Committee, and peace groups in the Philadelphia and Bucks County region. Of particular note is a bundle of correspondence with Sommerfeld.

A modest Midwesterner who became one of the most influential geneticists of the first half of the 20th century, William E. Castle spent his career at Harvard and the University of California working on patterns of inheritance in mice, horses, and a variety of other mammalian taxa. An early proponent of Mendelian theory, Castle was director of the Bussey Institution at Harvard for almost thirty years, helping to train a number of important geneticists. The Castle Papers contain one linear foot of correspondence dating primarily from the period after Castle's "retirement" to Berkeley in 1936 until his death in 1962, dealing almost exclusively with his research on horse breeding and the inheritance of coat coloration in horses. Castle's correspondence with his former student L. C. Dunn is an exception, focusing on mouse genetics and ranging to a variety of topics from the conduct of scientific research during the Second World War to Castle's interests in the early history of genetics.

One of the principle figures of turn of the century anti-Darwinian evolutionism, William Bateson (1861-1926) was a professor at Cambridge University for 23 years before leaving to become first director of the John Innes Horticultural Institute (1910-1926). Developing a unique "vibratory theory" of organismal variability during the 1890s that envisioned evolutionary change as a discontinuous process, Bateson became well known as the first English advocate of the recently rediscovered theories of Gregor Mendel. For a man inclined to drama and disputation in science, it was Bateson's family life that took on the airs of Greek tragedy. The two linear feet of correspondence, diaries, and photographs that comprise the Bateson Family Papers provide valuable insight into the social milieu of the Batesons and their decidedly unorthodox upper middle class academic life, as well as their responses to the tragic deaths of two of their sons.

The electrophysiologist Sergei Adamovich Kovalev (1932- ) was a prominent Russian dissident and human rights activist. After earning an international reputation for his research on the electrophysiology of myocardial tissues, Kovalev became involved with Andrei Sakharov and others in founding the Initiative Group for the Defense of Human Rights in the USSR, and he was a major figure in the distribution of The Chronicle of Current Events, a samizdat news letter that became the primary uncensored source for information about the dissident movement. He was arrested by the Soviet authorities in December 1974 and sentenced to seven years in prison and three more in exile. After the fall of the Soviet Union, Kovalev entered politics and won election to the Russian Duma. The Kovalev Collection consists of files of correspondence, circular letters, and miscellaneous published materials pertaining to the Soviet dissident scientist, Andrei Kovalev. The collection is arranged in two Series of approximately equal size, representing the activities of two of Kovalev's supporters: Paul F. Cranefield of Rockefeller University, who helped mobilize support for Kovalev in the United States, and Silvio Weidmann a physiologist at the University of Bern, who operated in Europe. Both Cranefield and Wiedmann were in regular contact with one another and both worked with professional organizations, with human rights groups such as Amnesty International, and with fellow activists such as Rosa Last.

A shadowy figure at best, the artist Antonio Zeno Shindler worked at the Smithsonian Institution from after the Civil War until the turn of the 20th century, specializing in ethnographic subjects. He was responsible for printing or taking a large number of photographs of American Indians exhibited there in 1869. The 95 studio portraits in the Shindler Collection were part of a suite of 301 images that comprised the first photographic exhibition at the Smithsonian, and that are documented in the catalogue Photographic Portraits of North American Indians in the Gallery of the Smithsonian Institution (1867). The individuals depicted were members of delegations sent to Washington during the years 1852, 1857-1858, and 1867-1869 from the following nations: Cherokee, Cheyenne, Chippewa, Choctaw, Dakota Sioux (Brule, Miniconjou, Sans Arc, Santee, Sisseton, Two-Kettle, Yankton), Osage, Pawnee, Ponca, Potawatomi, Sac and Fox, Seminole, and Ute. Shindler printed the earlier photographs (mostly taken by the McClees Gallery) and was photographer for the later delegations.