A collection of reprints of articles by Bohr and his students, primarily on physics, with a few on chemistry. Authors include Bohr, R.H. Fowler, Werner Heisenberg (one article), Georg von Hevesy, J. Holtsmark, Erich Hückel, J.C. Jacobsen, H.A. Kramers, Werner Kuhn, and others. Topics include radioactive decay, quantum mechanics, optics, nuclear physics, spectroscopy, and others. Included is a small collection of reprints on biochemical aspects of dentistry, collected by Aksel Tovborg Jensen. Also included are a few typewritten manuscripts, such as a 1955 account of the international activities of the Institute for Theoretical Physics in Copenhagen (later named the Niels Bohr Institute) from 1916-1955, an address given by Bohr at the Newton Tercentenary Celebration at the Royal Society, London, in 1946, and a copy of a spoof "Journal of Jocular Physics," v. 3 (Oct. 7, 1955).