With respect to the class of phenomena accompanied by this phosphorescent light, I shall have more to say by-and-by. The above will appear a very incredible story to many people, and there was a time that it would have appeared equally so to myself; but I have met with so much strange corroborative evidence, that I no longer feel myself entitled to reject it. I asked the gentleman who told me the story, whether he believed it; he said that he could not believe in anything of the sort. I then inquired if he would accept the testimony of that minister on any other question, and he answered, “Most assuredly.” As, however, I shall have occasion to recur to this subject in a subsequent chapter, I will leave it aside for the present, and relate some of the facts which led me to the consideration of the above theories and experiments. Dr. S—— relates that a Madame T——, in Prussia, dreamed, on the 16th of March, 1832, that the door opened, and her god-father, Mr. D——, who was much attached to her, entered the room, dressed as he usually was when prepared for church on Sundays; and that, knowing him to be in bad health, she asked him what he was doing abroad at such an early hour, and whether he was quite well again. Whereupon, he answered that he was; and, being about to undertake a very long journey, he had come to bid her farewell, and to intrust her with a commission, which was, that she would deliver a letter he had written to his wife; but accompanying it with an injunction that she (the wife) was not to open it till that day four years, when he would return himself, precisely at five o’clock in the morning, to fetch the answer, till which period he charged her not to break the seal. He then handed her a letter, sealed with black, the writing on which shone through the paper, so that she (the dreamer) was able to perceive that it contained an announcement to Mrs. D——, the wife, with whom, on account of the levity of her character, he had long lived unhappily, that she would die at that time four years.