All this, with so many other things which they assert, would be, if not admissible, at least worthy of attention, if those suppositions were offered for what they are, very ancient hypotheses that go back to the early ages of human theology and metaphysics; but when they are transformed into categorical and dogmatic assertions, they at once become untenable. Their exponents promise us, on the other hand, that by exercising our minds, by refining our senses, by etherealizing our bodies, we shall be able to live with those whom we call dead and with the higher beings that surround us. It all seems to lead to nothing very much and rests on very frail bases, on very vague proofs derived from hypnotic sleep, presentiments, mediumism, phantasms, and so forth. We want something more than arbitrary theories about the “immortal triad,” the “three worlds,” the “astral body,” the “permanent atom,” or the “Karma-Loka.” As their sensibility is keener, their perception subtler, their spiritual intuition more penetrating, than ours, why do they not choose as a field for investigation the phenomena of prenatal memory, for instance, to take one subject at random from a multitude of others--phenomena which, although sporadic and open to question, are still admissible? THE NEOSPIRITUALISTIC HYPOTHESIS Outside theosophy, investigations of a purely scientific nature have been made in the baffling regions of survival and reincarnation. Neospiritualism, or psychicism, or experimental spiritualism, had its origin in America in 1870. In the following year the first strictly scientific experiments were organized by Sir William Crookes, the man of genius who opened up most of the roads at the end of which men were astounded to discover unknown properties and conditions of matter; and as early as 1873 or 1874 he obtained, with the aid of the medium Florence Cook, phenomena of materialization that have hardly been surpassed. But the real beginning of the new science dates from the foundation of the Society for Psychical Research, familiarly known as the S. P. R. This society was formed in London twenty-eight years ago, under the auspices of the most distinguished men of science in England, and, as we all know, has made a methodical and strict study of every case of supernormal psychology and sensibility. This study or investigation, originally conducted by Edmund Gurney, F. W. H. Myers, and Frank Podmore, and continued by their successors, is a masterpiece of scientific patience and conscientiousness. Not an incident is admitted that is not supported by unimpeachable testimony, by definite written records and convincing corroboration. Among the many supernormal manifestations, telepathy, previsions, and so forth, we will take cognizance only of those which relate to life beyond the grave. They can be divided into two categories: first, real, objective, and spontaneous apparitions, or direct manifestations; second,