I shall not here consider the phenomena of telepathy or ghosts. Readers of THE ARENA have been favored with Mr. Wallace's excellent articles on this point, and it would be superfluous to reconsider it. No doubt our readers are also acquainted with the examples reported in my work called Urania, and have long been aware that I believe in the possibility of communications between invisible beings and ourselves. In the point of view at which I have placed myself in this technical and essentially scientific outline, I have taken care to carefully distinguish the things seen by myself from those which I have not seen. I do not belong to the same class with those who say: "We have not seen it, and therefore it cannot be." There are honest people everywhere. There are, perhaps, few exact observers, capable of reporting facts, without changing anything in their recitals; but there are witnesses we cannot well gainsay. Here, for example, is a letter among many recently addressed to me, relative to certain extraordinary facts. Your work, Urania, has prompted me to bring to your knowledge an event which I heard related by the very person to whom it happened,-a Danish physician, named Vogler, residing at Gudum, near Alborg, in Jutland. Vogler is a man of robust health, both in mind and body. He has an upright and positive disposition, without the least tendency (but quite the contrary) to nervous excitability. He related to me the following story, which I have often heard confirmed by others as the unadorned and exact truth.