In medicine, all the list of celebrated men are claimed as the same transmigration of his soul. He lifted up the serpent. He was Hypocrates, Celsus, Galen, Paracelsus, Stahl, Van Helmont, Boerhave, Cullen. In anatomy, surgery, chemistry, and natural philosophy, it was the same. The whole list of celebrated medical men is monopolized by this mania of transmigration. He always addressed strangers as contemporaries, saying, “Good God! you were alive at such a time: I knew you well; you were with me when I conquered at the plains of Marathon! or, you met me at such a place when I was singing the Iliad, as old Homer,” and so on. All this with such a fascination of look, manner, and address, that he arrests and amuses every one, especially strangers. He frequently talks with imaginary, and especially angelic beings, which he does with a manner and expression that prove he believes he beholds their actual presence. He had a peculiarly bright and glistening eye, indicative of the secret and destructive habit so dreadfully fatal to the insane. It appeared to me, since amidst all this strange confusion and delusion, his intellectual powers were still in existence, that if his understanding could be constantly occupied, this confused condition might in time be corrected, and his mind restored to a right state: for this purpose I undertook to make him translate a French work, while I wrote from his dictation, at the same time checking and controlling his wild starts into all these vagaries. In this manner we nearly finished an important medical work together, and he was evidently much improved by the exercise; the task was however so amazingly arduous, that in the midst of my other duties I was obliged to discontinue it, and he then relapsed into his former state. The effect, however, was sufficiently decided to prove a fact of very great importance, and many such facts having since occurred, which further tend to confirm that many cases which are generally given over as incurable, may be cured by a well-directed exercise of the understanding, by which it is at once strengthened, and the mind drawn and excluded from the exercise of its insane feelings and hallucinations. In some cases I have made them translate a work on the nature and effects of _their secret vice_, and it has silently checked this habit, and at last restored them. * * * * *