In this fascinating and lyrical book, the seemingly disparate but equally marvelous worlds of the circus and the medical amphitheater meet in characters ranging from the sword swallowers and women who lunched on hardware to the sensitive, bullied boy who grew up to be the father of endoscopy. The Mütter Museum's Chevalier Jackson Foreign Body Collection, a cabinet filled with thousands of items that have been swallowed or inhaled, then extracted nonsurgically by a pioneering laryngologist using rigid instruments of his own design, sets the stage for award-winning author Mary Cappello's moving investigative portrait of Dr. Chevalier Jackson (1865-1958), his cosmology of objects, and the lives he saved. Its own uncanny, deeply rewarding assemblage, Swallow brings together the complex physiology of the human swallow and the menace of a button box; a willed ingestion of non-nutritive things that is little understood and a social history of hunger; the humanitarian mission that bred the Federal Caustic Poison Act of 1927 and a crusade to make the world "foreign body conscious."