IN WHICH THE COSMOPOLITAN TELLS THE STORY OF THE GENTLEMAN MADMAN. "Charlemont was a young merchant of French descent, living in St. Louis--a man not deficient in mind, and possessed of that sterling and captivating kindliness, seldom in perfection seen but in youthful bachelors, united at times to a remarkable sort of gracefully devil-may-care and witty good-humor. Of course, he was admired by everybody, and loved, as only mankind can love, by not a few. But in his twenty-ninth year a change came over him. Like one whose hair turns gray in a night, so in a day Charlemont turned from affable to morose. His acquaintances were passed without greeting; while, as for his confidential friends, them he pointedly, unscrupulously, and with a kind of fierceness, cut dead. "One, provoked by such c

