narrative being, according to him, of a scientific or pathological kind, it would be hostile to scientific interests to depart from historical accuracy in its presentation. From the professional dictum of a man like Dr. Forbes Rollinson there can, of course, be no appeal, and if I am to write the account at all, it is but fair that in so doing I should respect the wishes of him who is the lawful proprietor of it. I have thought it but fair to myself, however, to begin by offering this explanation. I feel more or less hampered by the conditions enjoined upon me, and, besides, I do not agree with Dr. Rollinson's theory of the phenomena. In the present state of our knowledge, no theory on such subjects can pretend to be more than hypothetically correct; and my prejudices are opposed to what is known as the materialistic explanation of the universe. With, all respect for the validity of science within its proper sphere, I do not conceive that its judgments are entitled to paramount consideration when they attempt to settle the problems of psychology. There are mysteries which no process of inductive reasoning can reach.--The reader, however, will not be decoyed blindfold into accepting as final either the Doctor's view or mine; but, after possessing himself of the facts, will be left free to draw what conclusions he may please. As regards the matter of names, dates, and localities, Dr. Rollinson holds that they had better be given at full length; and here I am not disposed to differ from him. The system of blanks and initial letters was always distasteful to me; and to use fictitious names in a true story seems like taking away with one hand what you give with another. Besides, every one of the actors in the drama is now dead: Dr. Rollinson [1] himself being the only living person who is cognizant, directly, of all the circumstances, from beginning to end. In his capacity of physician, he was the intimate and trusted friend of the ill-fated Malmaison household during upward of twenty years, and he inherited this confidential position from his father. He has kindly placed at my disposal a number of his professional note-books and journals, and in various places I have incorporated with the narrative some of the information which they contain. At other times I have inserted minor details of conversation and incident, and have endeavored to throw over the whole as "fictitious" an air as was consistent with the conscientious observance of my compact with the Doctor. And now, without further preface, I will proceed to business. I.