The discovery of the electron, in his opinion, might make it possible to have an entire city in which every material substance should be invisible. “There is no reason why the forces in action should make a visible city. We believe today in the unity of matter. It has almost been demonstrated that we can turn soda into copper. Uranium passes into radium. Carrel is growing living protoplasm outside the body. Adami has shown how an electric stimulus applied to the ovum of frogs produces twins. The electron is the manifestation of force. “It is almost certain that there is no such thing as physical life. No matter could exist without movement—the sort of movement you behold when the spinthariscope throws the radiations from bromide of radium on a fluorescent screen. If there is no physical life, there is no death. So many things exist that we do not see. We cannot see ether or weigh it, but we know that it exists. There is a physical explanation of the resurrection. The whole universe is incessant motion, just as sound is vibration—the ordinary C with 256 vibrations, the octave with 512, the next octave with 1,024 vibrations to the second. “Tin is a mass of whirling electrons. Gold is composed of a different number of electrons. That’s why we can’t cross from one to the other.” It is not quite fair to put down these random remarks, on an extremely abstruse matter—thrown over the Doctor’s shoulder as he flits about a village, the dogs at his heels—without quoting his more deliberate formulation of his ideas in an article in “Toilers of the Deep.” In that article he writes: “If chemistry of today has made it certain that there is no such thing in the human body as a transcendental entity called ‘life,’ and every function and every organ of the body can be chemically or physically accounted for, then it is obvious that we have no reason to weep for it. More infinitely marvellous the more we learn of it, so marvellous that no one can begin to appreciate it but the man of science, it helps us to realize how easily He who clothed us with it can provide another equally well adapted to the needs of that which awaits us when we go ‘home.’ We have learned to enlarge our physical capacities, our ‘selves,’ the microscope, the ultramicroscope, the spectroscope, the electroscope, the spinthariscope, the ophthalmoscope, the fluoroscope, the telescope, and other man-made machines have made the natural range of the eye of man a mere bagatelle compared with what it now commands and reveals. The microphone, the megaphone, the audophone, the wireless and other machinery have as greatly enlarged our command of the field of sound. Space has been largely conquered by electric devices for telephoning, telegraphing, and motor power. On the land, under the sea, in the air, man is rapidly acquiring a mastery that is miraculous.