As of July 6th, APS offices are open to staff and invited visitors. The Society will remain closed to the public until further notice. Library & Museum staff now have access to our collections and will respond to reference and photoduplication requests as soon as possible. However, please note that response times may be delayed due to increased demand. The Society will continue a robust slate of virtual programs throughout the fall. Read more about virtual programming and resources that can be accessed remotely. For further information on the APS reopening and its COVID response, please click here.

Blog

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Marian Christ
The Library of the American Philosophical Society acquired, in 1975, Mechanism of the Heavens, a translation by Mary Somerville of Pierre-Simon Laplace’s Traité de mécanique...
Jillian Curran
In historical research, silences in the archive are practically guaranteed. A historical document may not provide the researcher with the evidence she or he hoped...
Elizabeth Lilly
At the time of the Revolutionary War, political allegiance became one of the most important points of identification for a colonist: would one stay loyal...
Kyle Roberts
The Maryland Loyalism Project is a new digital archive and biographical database of women and men from the Maryland colony who remained loyal to Britain...
Jeffery Appelhans
More than two years ago, postdoctoral fellows at the Library & Museum of the American Philosophical Society began what figures to be a signature product...
American Philosophical Society
Inspired by its 2021 exhibition Dr. Franklin, Citizen Scientist, the American Philosophical Society’s Library & Museum is organizing a symposium that explores citizen science as...
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Anisha Gupta
Sometimes a project arrives in the conservation lab as a mystery. It might be damaged, so in order for the cataloguers and librarians to safely...
Molly Nebiolo
This summer I spent my time as an Experiential Fellow with the Center for Digital Scholarship cleaning and organizing James Madison’s meteorological dataset for the...