facts and arguments that may be adduced for or against the agency of the dead; and, lastly, to Myers’ great work, _Human Personality and its Survival after Bodily Death_. ----- Footnote 6: Those who take up the study of these supernormal manifestations usually ask themselves: “Why mediums? Why make use of these often questionable and always inadequate intermediaries?” The reason is that, hitherto, no way has been discovered of doing without them. If we admit the spiritualistic theory, the discarnate spirits which surround us on every side and which are separated from us by the impenetrable and mysterious wall of death seek, in order to communicate with us, the line of least resistance between the two worlds and find it in the medium, without our knowing why, even as we do not know why an electric current passes along copper wire and is stopped by glass or porcelain. If, on the other hand, we admit the telepathic hypothesis, which is the more probable, we observe that the thoughts, intentions or suggestions transmitted are, in the majority of cases, not conveyed from one subconscious intelligence to another. There is need of an organism that is, at the same time, a receiver and a transmitter; and this organism is found in the medium. Why? Once more, we know absolutely nothing about it, even as we do not know why one body or combination of bodies is sensitive to concentric waves in wireless telegraphy, while another is not affected by it. We here grope, as, for that matter, we grope almost everywhere, in the obscure domain of undisputed, but inexplicable facts. Those who care to possess more precise notions on the theory of mediumism will do well to read the admirable address delivered by Sir William Crookes, as president of the S.P.R., on the 29th of January 1897. Footnote 7: