The stethoscope has come to represent the physician perhaps more than any other symbol save the shaft of Aesculapius. It has had a profound influence on the practice of medicine. Called a "fascinating book" by the New York Times, An Ear to the Chest: An Illustrated History of the Evolution of the Stethoscope explores the debate over the value of the stethoscope, its design, and its acceptance by the public and the professionals who used it. The book...