Commemorating the 275th anniversary of the American Philosophical Society (APS), Celebration of the Hundredth Anniversary of the American Philosophical Society is a thought-provoking reissue of the 1843 Proceedings volume, which was published to celebrate the centennial of APS’s founding. Complete with a new foreword by Robert M. Hauser, CEO of the APS from 2017 to 2025, this publication provides invaluable context, insights, and direct correspondences from mid-19th century America on a variety of topics and disciplines. An unvarnished look at the 1843 Society and selected theories and perspectives of its 322 Members, this publication reflects the strengths and weaknesses, the myopia and the promise of thought leaders in a young United States.