nucleus of something beyond my comprehension; something infinitely beyond the comprehension of my more experienced but less imaginative medical and scientific colleagues.
And yet I could extract nothing definite from the man. The sum of all my investigation was, that in a kind of semi-corporeal dream-life Slater wandered or floated through resplendent and prodigious valleys, meadows, gardens, cities, and palaces of light, in a region unbounded and unknown to man; that there he was no peasant or degenerate, but a creature of importance and vivid life, moving proudly and dominantly, and checked only by a certain deadly enemy, who seemed to be a being of visible yet ethereal structure, and who did not appear to be of human shape, since Slater never referred to it as a man, or as aught save a thing. This thing had done Slater some hideous but unnamed wrong, which the maniac (if maniac he were) yearned to avenge.
From the manner in which Slater alluded to their dealings, I judged that he and the luminous thing had met on equal terms; that in his dream existence the man was himself a luminous thing of the same race as his enemy. This impression was sustained by his frequent references to flying through space and burning all that impeded his progress. Yet these conceptions were formulated in rustic words wholly inadequate to convey them, a circumstance which drove me to the conclusion that if a true dream world indeed existed, oral language was not its medium for the transmission of thought. Could it be that the dream soul inhabiting this inferior body was desperately struggling to speak things which the simple and halting tongue of dullness could not utter? Could it be that I was face to face with intellectual emanations which would explain the mystery if I could but learn to discover and read them? I did not tell the older physicians of these things, for middle age is skeptical, cynical, and disinclined to accept new ideas. Besides, the head of the institution had but lately warned me in his paternal way that I was overworking; that my mind needed a rest.
It had long been my belief that human thought consists basically of atomic or molecular motion, convertible into ether waves of radiant energy like heat, light and electricity. This belief had early led me to contemplate the possibility of telepathy or mental communication by means of suitable apparatus, and I had in my college days prepared a set of transmitting and receiving instruments somewhat similar to the cumbrous devices employed in wireless telegraphy at that crude, pre-radio period. These I had tested with a fellow-student, but achieving no result, had soon packed them away with other scientific odds and ends for possible future use.
Now, in my intense desire to probe into the dream-life of Joe Slater, I sought these instruments again, and spent several days in repairing them for action. When they were complete once more I missed no opportunity for their trial. At each outburst of Slater's violence, I would fit the transmitter to his forehead and the receiver to my own, constantly making delicate adjustments for various hypothetical wave-lengths of intellectual energy. I had but little notion of how the thought-impressions would, if successfully conveyed, arouse an intelligent response in my brain, but I felt certain that I could detect and interpret them. Accordingly I continued my experiments, though informing no one of their nature.
It was on the twenty-first of February, 1901, that the thing occurred. As I look back across the years I realize how unreal it seems, and sometimes half won-
