These experiments, as well as those that are about to follow, gain greater credibility when considered in the light of the newer experimental researches in physics, which demonstrate, apparently, that matter can be made to disintegrate and disappear, and can be again reformed from invisible vortices in the ether into sufficiently solid bodies to be photographed by the sensitive plate. In his remarkable work, _The Evolution of Matter_, Dr. Gustave Le Bon has devoted a whole section of his argument to what he has denominated "the dematerialization of matter." He proves by experiments in the physical laboratory that matter can dissociate, and vanish into apparent nothingness. What really takes place, however, is that the solid matter, as we have been accustomed to conceive it, is resolved into its finer constituent parts--not only into the material atoms of which it is composed, but these atoms are in turn dissociated and resolved into a series of etheric vortices, invisible to normal sense perception. Apparently, therefore, matter has ceased to be, as such; and, in fact, it has been resolved into energy! Conversely, Dr. Le Bon proved that, by producing artificial equilibria of the elements arising from the dissociation of matter, he could succeed in creating, with immaterial particles, "something singularly resembling matter." These equilibria were maintained a sufficient length of time to enable them to be photographed. On p. 164 of Dr. Le Bon's _Evolution of Matter_, are to be found photographs of what is practically materialized matter. This author says, in part:-- "Such equilibria can only be maintained for a moment. If we were able to isolate and fix them for good--that is to say, so that they would survive their generating cause--we should have succeeded in creating with immaterial particles something singularly resembling matter. The enormous quantity of energy condensed within the atom shows the impossibility of realizing such an experiment. But, if we cannot with immaterial things effect equilibria, able to survive the cause which gave them birth, we can at least maintain them for a sufficiently long time to photograph them, and thus create a sort of momentary materialization." If, therefore, physical science now admits, as it does, that vibrations, or disturbances in the ether, can be photographed, there is no longer any _a priori_ objection to these experiments by Dr. Baraduc--which claim, merely, that similar vibrations have been photographed--such vibrations being the external modification or impression left upon the ether by the causal thought. So much for theoretical possibilities: now for the facts.