That the transmutation of one substance into another is not a mere dream of the mediaeval alchemists is now already shown by Modern Science. Under suitable conditions an atom of Radium breaks down into atoms of another sort known as Radium Emanations, and these again break down into yet another sort of atoms to which the name of Radium Emanations X has been given, while Radium Emanation also gives rise to the atom of Helium (N.K. 124). Thorium also behaves in the same manner, transmuting into atoms called Thorium X, which again change into atoms of another sort to which the name of Thorium Emanations has been given and these in turn transmute into atoms of yet another kind, known as Thorium Emanations X. The same is the case also with Uranium which, however, so far as is yet known, undergoes only one transmutation into what is known as Uranium X. The transmutation of one sort of atom into another is therefore not a mere visionary fancy, but an established fact; and although our laboratory experiments in this direction may not as yet have gone very far, they have gone far enough to show that a Law of Transmutation does exist in Nature. Then, since the difference between one sort of atom and another results from the difference and arrangement of their particles, and the difference in the number and arrangement of the particles results from the difference in the speed of their rotation, and this again results from the difference in the energy or rate of vibration of the particles, we come back to different rates of etheric vibrations as the commencement of the whole series of changes; and as is proved by the facts of wireless telephoning, different rates of etheric vibrations can be set in motion by the varying sounds of the human voice, even on the physical plane. May it not be then, that by the same law, vibrations of other wave-lengths, yet unknown to science, will be set in motion by the unspoken word of our thought? The substance known as Polonium, even by its near approach to an electric bell, causes it to ring, and if etheric waves can thus be started by an inanimate substance, why should we suppose that our thought has less power, especially when metaphysically we cannot avoid the conclusion that the whole creation must have its origin in the Divine Thought?