Saturn and Melancholy has been out of print for a long time. Following requests from scholars in many countries the book is now made available again. Much could be added to it, especially in the light of recent studies in the history of ancient medicine. However this would hardly be possible without affecting the balance of the whole. Since neither of my co-authors is alive - Erwin Panofsky died in March 1968 - I considered it best to leave the work in the form in which it first appeared fifteen years ago. --Preface to reprint, Raymond Klibansky, Oxford, February 1979