Mental medicine does not always succeed, however; and once, in my own case, failed entirely. When traveling in Europe, in the year 1825, I was attacked with very severe quartan fever. I was drugged immensely between the paroxysms, and the physician conspired with my friends to persuade me I was quite cured. They went so far as, without my knowing it, to put forward a striking-clock that was on the mantle-piece, and when the hour struck, at which the fit usually seized me, without any appearance of its return, they congratulated me on my recovery, and actually left me. Nevertheless, at the real hour, the fever seized me again, and shook me nearly to pieces. Neither is it that mental medicine sometimes fails; but it sometimes operates in a most unexpected and disastrous manner; especially when applied to mental disease; and I am rather inclined to believe, that corporeal malady may often be best treated by mental means; mental malady by corporeal means. A friend of my youth, poor Mr. S---- lost his only son, in a very lamentable manner. He had but two children: this son and a daughter. Both were exceedingly handsome, full of talent and kindly affection; and the two young people were most strongly attached to each other. Suddenly, the health of young S---- was perceived to decline. He became grave--pale--sad--emaciated. His parents took the alarm. Physicians were sent for. No corporeal disease of any kind could be discovered. The doctors declared privately that there must be something on his mind, as it is called, and his father with the utmost kindness and tenderness, besought him to confide in him, assuring him that if any thing within the reach of fortune or influence could give him relief, his wishes should be accomplished, whatever they might be. "You can do nothing for me, my dear father," replied the young man, sadly; "but you deserve all my confidence, and I will not withhold it. That which is destroying me, is want of rest. Every night, about an hour after I lie down, a figure dressed in white, very like the figure of my dear sister, glides into the room, and seats itself on the right side of my bed, where it remains all night. If I am asleep at the time of its coming, I am sure to wake, and I remain awake all night with my eyes fixed upon it. I believe it to be a delusion; but I can not banish it; and the moment it appears, I am completely under its influence. This is what is killing me."