the sitter's life which he had forgotten until reminded of them, is not at all strange or unaccountable, when we remember that the memory of the subjective mind is perfect. Neither is there any evidential value in the fact that the sitter cannot remember an incident related by the medium; for he must remember that objective memory retains little, comparatively, of the incidents of life, while the subjective mind retains all. It will thus be seen that in order to explain the phenomena of spiritism on the hypothesis that it has its origin wholly within the sub-conscious mind of the medium, it is not necessary to presuppose that he is dishonest or insincere when he attributes it to disembodied spirits. In the absence of knowledge on his part of the recent discoveries in psychological science, he has the best of reasons for so believing, for up to the present time no other hypothesis has been advanced which will account for all the phenomena on any other rational supposition. But the two great laws--duality of mind and suggestion--clear away the greatest stumbling-block in the way of scientific investigation of this, the greatest problem of the ages. It is now no longer necessary to deny the phenomena, since they can all be accounted for on scientific principles, outside the domain of the supernatural. It is no longer necessary to consider the spiritual medium either a fool or an impostor, since the phenomena are genuine, and their explanation on scientific principles is impossible, except in the light of very recent discoveries in psychic science. Having set forth the fundamental principles underlying the production of so-called spirit phenomena, we will now proceed briefly to examine their various phases and leading characteristics, and to show how the hypothesis under consideration applies to each of them with the same force and pertinency as in the case of the other psychic phenomena which have been considered. [Illustration] CHAPTER XVI. THE PHENOMENA OF SPIRITISM (_continued_). Various Classes of Phenomena.--Clairvoyance.--Its Field not yet clearly defined.--Telepathy invades its Ancient Domain.--Simple Experiments in Telepathy.--Their Significance.--Telepathic Power in Mediums.--Telepathic Visions.--A Typical Séance.--Wonderful Exhibition of Telepathic Power.--An Affecting Interview of the Sitter with Himself.--Deductions.--Visions of Inanimate Things as well as of Deceased Persons.--Spirit of the Jack of Clubs.--Subjective Memory.--Spirit Identity.--Allan Kardec's Observations.--His Illogical Conclusions.--His Supreme Test.--Telepathic Explanation.--Four Ways of explaining his Test Case.