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. All visitors to the Reading Room must make an appointment through [email protected]. 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.