Dr. Kerner relates a case of a Dr. John B——, who was studying medicine in Paris, seeing his mother one night, shortly after he had got into bed, and before he had put out his light. She was dressed after a fashion in which he had never seen her; but she vanished,—and thus, aware of the nature of the appearance, he became much alarmed, and wrote home to inquire after her health. The answer he received was that she was extremely unwell, having been under the most intense anxiety on his account, from hearing that several medical students in Paris had been arrested as resurrectionists; and, knowing his passion for anatomical investigations, she had apprehended he might be among the number. The letter concluded with an earnest request that he would pay her a visit. He did so; and his surprise was so great on meeting her, to perceive that she was dressed exactly as he had seen her in his room at Paris, that he could not at first embrace her, and was obliged to explain the cause of his astonishment and repugnance. An analogous case to these is that of Dr. Donne,—which is already mentioned in so many publications, that I should not allude to it here but for the purpose of showing that these examples belong to a _class_ of facts, and that it is not to be supposed that similarity argues identity, or that one and the same story is reproduced with new names and localities. I mention this because, when circumstances of this kind are related, I sometimes hear people say, “Oh, I have heard that story before, but it was said to have happened to Mr. So-and-so, or at such a place;” the truth being, that these things happen in all places and to a great variety of people.