Catalogue of the landmark exhibition at the Grolier Club, September 20-November 23, 1994. On show were over 100 books, manuscripts, and images chronicling the evolution of medical knowledge, from antiquity to the invention of the CAT scan. Included were original editions of Andreas Vesalius, William Harvey, Edward Jenner, and Alexander Fleming, among others. The catalogue traces the dissemination of formative medical discoveries from the ancient world to the present, from the writings of Hippocrates to those of James Watson and Francis Crick. It is the latest in a series of milestone "Grolier One Hundred" catalogues which delineate a limited number of consequential publications in a particular field shown in special Club exhibitions over the last century--a successor to One Hundred Books Famous in English Literature (1902), One Hundred Influential American Books (1947), and One Hundred Books Famous in Science (1958). Described in full bibliographical detail are notable and, in many cases, unique copies--dedication copies, those bound by eminent bookbinders, those with uncommon illustrations, and those once owned by well-known physicians, scien-tists, or bibliophiles. Written by experts in the history of medicine, the catalogue was edited by Hope Mayo under the direction of Haskell F. Norman, M.D., the curator of the exhibition, whose own celebrated library of science and medicine was sold at auction in 2000. Designed by Jerry Kelly, printed at the Stinehour Press.