The method of dealing with a subject in a series of lectures takes one back to the nineteenth century, when it had a high degree of popularity. One may believe that the writer by assembling a series of lectures implies a somewhat informal discussion and perhaps relieves himself from the responsibility of systematically covering all aspects of a subject. Lectures may also be assumed to reflect a highly personal point of view. The present volume, however, covers the subjects of the gallbladder and the bile ducts thoroughly and adequately. The illustrations are profuse and well selected, and there are good bibliographies.