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.

Executive Offices and Museum Gallery
104 South Fifth Street 
Philadelphia, PA 19106-3387
215-440-3400 | Fax 215-440-3450

Library
105 South Fifth Street
Philadelphia, Pa 19106-3386
215-440-3400 | Fax 215-440-3423

For questions about APS Library collections and research visits, please use the APS Library Reference Requests form. To request copies or to learn more about publication permissions from the APS Library, please visit the Reference Requests page

Use this form to contact the American Philosophical Society electronically.

Contact Us