Use The Aps Library
With roots extending back to the founding of the Society in 1743, the Library of the American Philosophical Society houses over thirteen million manuscripts, 350,000 volumes and bound periodicals, 250,000 images, and thousands of hours of audio tape. The Library's holdings make it among the premier institutions for documenting the history of the American Revolution and Founding, the study of natural history in the 18th and 19th centuries, the study of evolution and genetics, quantum mechanics, and the development of cultural anthropology, among others.
