APS Library
June 13, 2022
In a letter written in the 1920s to Rockefeller Institute director Rufus Ivory Cole, Joseph Leidy—nephew of the famed Philadelphian with whom he shared a...
June 6, 2022
The Long Expedition set out from the Allegheny Arsenal in Pittsburgh on May 3, 1819, with goals to both exert American control of western territories...
May 26, 2022
Philadelphia, PA, [May 27, 2022] – Thanks to a generous donation by Graham Arader and Lori Cohen, five rare botanical watercolors, valued at $1.75 million...
May 16, 2022
In 2013, Ellen Lehman, a generous donor to the Library who has given us many works on the Arctic and its peoples, gave us Two...
May 9, 2022
Header Image: Presbyterian Hospital Surgical Alumni (1955). Apgar is fifth from left, in a white coat. Courtesy of Mount Holyoke College and National Library of...
May 2, 2022
Before I joined the Manuscripts Processing team at the American Philosophical Society’s Library & Museum in 2019, I was lucky to gain insight into the...
April 25, 2022
Word lists of Indigenous languages are a very common form of documentation among the APS’s archival collections. At first look, these lists seem like the...
April 18, 2022
The David Rittenhouse Papers are now digitized in their entirety and available to view in the APS’s Digital Library. The collection contains around 30 objects...