Excerpt:
A collection of some 25,000 historical photographs, slides, lithographs, engravings, and other visual materials, the Emilio Segrè Visual Archives is part of the Niels Bohr Library of the Center for History of Physics at the American Institute of Physics. The collection focuses on American physicists and astronomers of the twentieth century, but includes many scientists in Europe and elsewhere, in other fields related to physics, and in earlier times.