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Online Catalogs

The Niels Bohr Library & Archives' resources are accessible through our online catalogs. You can locate photos and other images in the Emilio Segrè Visual Archives, search the Book and Serials collection, or peruse archival collections in our repository and throughout the world via the International Catalog of Sources (ICOS). When available, archival finding aids will be linked directly from catalog records, and the Physics History Finding Aids Website contains cross-indexed finding aids from archives throughout the U.S. and U.K.

If you need assistance, have questions, or just want a jumpstart on your research, contact the Library reference staff at (301) 209-3177 or by email at nbl@aip.org. You can also check out our FAQs page for more search tips.



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Book Catalog

The Book Catalog provides online access to the Library’s print holdings. These consist of approximately 18,000 titles, including physical science monographs, textbooks, laboratory manuals, instrument catalogs, biographies, and published correspondence. The Library also holds complete runs of the journals published by the American Institute of Physics.

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Archival Catalog

The International Catalog of Sources (ICOS) contains descriptions of over 9,000 archival and manuscript collections, oral history interviews, and other primary sources in our fields at ca. 900 repositories worldwide, including all the archival materials held in the Niels Bohr Library & Archives. For a full description of ICOS, click here.

ESVA image of Emilio Segre
Emilio Segrè Visual Archives

The photograph collection is named in honor of Emilio Segrè, best known for his Nobel Prize-winning work in nuclear and high-energy physics, but also an avid photographer. It contains over 30,000 images, more than half of which are available online. It includes formal and informal photos of Nobel laureates, AIP and Member Society officers, and many other physicists and allied scientists. This catalog is updated regularly as we continue to acquire new images and process our backlog. If you need assistance please contact us at photos@aip.org.