Celebrating the centennial of the American Physiological Society, this new book reviews the activities during the Society's first hundred years. The first section covers materials from the Society's founding in 1887 and a review of each of the first 25 year periods of the Society's existence. The second section includes a chronological account of the Presidents and the Executive Secretary-Treasurers. Also included are chapters on membership, publications, meetings, financial affairs, educational activities, organization of the Society, neurophysiology, relations with IUPS, women in physiology, use and care of laboratory animals, awards and honors, and the centennial celebration.