The APS is closed on Monday, October 14 in observance of Indigenous Peoples' Day.

Subject Guides and Bibliographies

An annotated bibliography of sources on African American history in the APS Library.
An annotated bibliography of sources on anthropology and archaeology in the APS Library.
An annotated bibliography of manuscript sources on physiology, biochemistry, and biophysics in the APS Library.

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

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

A guide to sources on American expeditions and surveys from 1803–1865 at the APS Library and other Philadelphia repositories.
A guide to the manuscript collections at the APS Library related to genetics and eugenics.
The following subject guide is a nearly comprehensive database of manuscript holdings pertaining to the languages, cultures, histories, and continued presence of Indigenous peoples of the Americas held at the APS.
A catalog of maps in the APS Library.
An annotated bibliography of printed materials related to natural history in the APS Library.
An annotated guide to manuscript collections related to naval history in the APS Library.
This guide catalogs materials on the history of quantum physics and related developments in theoretical physics held at the APS and related repositories.
These are published guides to materials in the APS's collections.