This is a collection of essays on the history of Psychiatry. Volume I of three, offers works around people and ideas including those of Samuel Johnson, Jon Conolly, Descartes, Freud, Darwin and Hamlet. Most of the papers in these volumes arose from a seminar series on the history of psychiatry and a one-day seminar on the same theme held at the Wellcome Institute for the History of Medicine, London, during the academic year 1982-83.