"'Not long after the death of an illustrious poet, who had filled, while living, a great station in the eyes of the public, a literary friend, to whom the deceased had been well known, was engaged during the darkening twilight of an autumn evening, in perusing one of the publications which professed to detail the habits and opinions of the distinguished individual who was now no more. As the reader had enjoyed the intimacy of the deceased to a considerable degree, he was deeply interested in the publication, which contained some particulars relating to himself and other friends. A visitor was sitting in the apartment, who was also engaged in reading. Their sitting-room opened into an entrance hall, rather fantastically fitted up with articles of armor, skins of wild animals, and the like. It was when laying down his book, and passing into this hall, through which the moon was beginning to shine, that the individual of whom I speak saw right before him, in a standing posture, the exact representation of his departed friend, whose recollection had been so strongly brought to his imagination. He stopped for a single moment, so as to notice the wonderful accuracy with which fancy had impressed upon the bodily eye the peculiarities of dress and position of the illustrious poet. Sensible, however, of the delusion, he felt no sentiment save that of wonder at the extraordinary accuracy of the resemblance, and stepped onward to the figure, which resolved itself as he approached into the various materials of which it was composed. These were merely a screen occupied by great coats, shawls, plaids, and such other articles as are usually found in a country entrance hall. The spectator returned to the spot from which he had seen the illusion, and endeavored with all his power to recall the image which had been so singularly vivid. But this he was unable to do. And the person who had witnessed the apparition, or, more properly, whose excited state had been the means of raising it, had only to return to the apartment, and tell his young friend under what a striking hallucination he had for a moment labored.'" Here I was constrained to call the Professor to a halt. "Your stories are very interesting," I said, "but I fail to perceive any analogy in either the conditions or the incidents, to my experience. I was fully awake and conscious at the time, and the man I saw appeared and moved about in the full glare of the gaslight,--" "Perhaps not," he answered; "I am simply giving you some general illustrations of the subject. But here is a case more to the point." Again he read: