On the premise that ""Atlantis is a possibility, nothing more"" -- the author discusses, objectively, dispassionately, the fable which from time memorial has been the source of much romantic and scientific conjecture. He has followed every clue, finds most of them fallacious, but in his presentation he manages to bridge the scholarly and the lay interest. He follows his thread from Plato down to Spence. First the legend, then its scientific plausibility, its geological basis, its theosophical import, the role it has played in the field of literature. The style is lucid and there is an undercurrent of humor. A book for the Donnelly market -- his Atlantis still sells after decades.