Comprising 24 black-and-white photographs and 1 colour photograph.
Including photographs of a physics outing from the University of Michigan, Ann Arbor, to Robert Bacher's cottage on Portage Lake, Maine, including Enrico Fermi and Emilio Segrè, 1935 (6); the Baranys family in a Christmas card, undated (1); Eva von Bahr- Bergius, undated, 1912 (5); a postcard of Ernst Beckmann and the Chemistry Laboratory at Leipzig University, undated (1); Hans Bethe with Ulla Frisch, undated (1); Felix Bloch, undated, 1950 (6); Max Born and his family, 1960 (2); Egon Bretscher and his family at Los Alamos, 1944 or 1945 (1); and K. J. Brostrøm, 1938 (2).