APS offices and the Library will be closed until further notice. On-site events are suspended through April 30, but read more about virtual programming and resources that can be accessed remotely. Read more about the APS response to COVID-19.

Collection Areas

Explore the Society's rich holdings by clicking on a core collecting area below.
Engraving of Philadelphia

Early American History Collections

Detail of annotated map of interior Pacific Northwest

Ethnography and Linguistics

19th-century laboratory

History of Science Collections

Portrait of Thomas Jefferson

Museum Collections