The APS offices and Library are closed on Monday, January 21 for the Martin Luther King Jr. holiday. 

Subject Guides and Bibliographies

African American History

An annotated bibliography of sources on African American history in the APS Library.
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Anthropology

An annotated bibliography of sources on anthropology and archaeology in the APS Library.
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Biochemistry

An annotated bibliography of manuscript sources on physiology, biochemistry, and biophysics in the APS Library.
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Diaries

A guide to diaries held in the APS Library's manuscripts collections featuring geographic browsing.

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Early American History

A guide to sources on Early American History (to 1840) in the APS Library's collections.

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Exploration, Scientific

A guide to sources on American expeditions and surveys from 1803–1865 at the APS Library and other Philadelphia repositories.
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Genetics and Eugenics

A guide to the manuscript collections at the APS Library related to genetics and eugenics.
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Indigenous Cultures and Languages

The following subject guide is a comprehensive database of manuscript holdings pertaining to Indigenous languages and cultures held at the APS.
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Maps

A catalog of maps in the APS Library.
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Natural History

An annotated bibliography of printed materials related to natural history in the APS Library.
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Naval History

An annotated guide to manuscript collections related to naval history in the APS Library.
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Physics

This guide catalogs materials on the history of quantum physics and related developments in theoretical physics held at the APS and related repositories.
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Published Guides

These are published guides to materials in the APS's collections.
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