Not long ago I received a letter from an old-time friend, in which he urgently requested me to make a journey to his city. In bygone days he and I had spent many hours together, discussing the mysteries of existence, the hidden powers which nature manifests to us, and the origin and destiny of the human soul. My friend is a physician, and what is more, an earnest student; and he is also an investigator of that strange phenomenon in nature which manifests itself in organized beings subjectively, as thought, feeling and things spiritual. Many times had we discussed the possibility and also the probability of an existence of the spiritual part of man after death. Many times had he reported to me cases of strange phenomena that tended to prove the indestructibility of spirit. When I received this missive, it stated to me that the writer most earnestly desired my presence in his city, that I might assist in investigating a very strange and marvelous case of psychic phenomena. The case was that of a certain traveling spirit medium, who claimed the power to summon from the realms of the invisible the shades of our departed friends and loved ones. He gave most marvelous exhibitions to prove his strange and miraculous power. My friend stated that he thought he had at last found a person with at least some queer psychical gift, if not even possessing the power that he claimed. He had watched the exhibition most carefully, and had even served on a committee on the psychic's stage; and he could find no evidence of trickery of any kind. He was inclined to believe that this strange being really possessed the power of vision without the use of human eyes as he certainly read sealed missives, of which he could in no secret manner have obtained knowledge. Accordingly, on Saturday evening, I journeyed to a city one hundred miles away to witness the work of this modern sorcerer. On my arrival I suggested to my friend a number of ways by which such things could be performed by trickery, but he informed me that none of my explanations seemed to elucidate this strange work. The secret did not consist in the use of odorless alcohol, for the reason that the medium never touched the sealed envelopes at all. In fact he was never nearer to them than ten feet. This also made it impossible for him to use the principle on which the trick is based, which is known to the profession as "Washington Irving Bishop's Sealed Letter Reading."