The force which Mr. Keely uses in running machinery is the sympathetic attractive,--the force which, according to his theories, draws the planets together; while in his system of aërial navigation, should he live to perfect it, he will use a negation of this force,--the same that regulates the motion of the planets in their recession from each other. It is the sympathetic attractive force which keeps the planets subservient to a certain range of motion, between their oscillations. If this condition were broken up, the rotation of planets would cease; if destroyed at a given point of recession, all planets would become wanderers, like the comets; if destroyed at another given point, assimilation would take place, as two bullets fired through the air, meeting, would fuse into one mass. Nature has established her sympathetic concordants from the birth of the neutral centres of the planets, in a manner known only to the Infinite One. This is gravity. "The music of the spheres" is a reality. "The finer the power the greater the force." Thus, the inaudible atomic, etheric, and inter-etheric sounds, which control and direct the harmony of the movements of the celestial universe, are the most powerful of all sounds. If our faculty of hearing were a hundred billions of times intensified, we might be able to hear the streams of light as plainly as we now hear the sighings of the wind. Again, to answer the often-asked question, "What has Keely done?" 9th. He has broken joints of his fingers and thumbs, he has broken his ribs, he has had his left side paralyzed for weeks, he has lost the sight of one eye for months, in his hand-to-hand fight with the genii that he has encountered, and cannot completely subdue until he has effected the condition of polarization and depolarization which is necessary for the control of rotation and reversions in his commercial engine. An illness of nine weeks followed his abandonment of water in disintegrating; and he was obliged to return to its use, to avoid the percussion that was induced by the rapid vibration of the atmospheric air. To illustrate: if a bullet is fired at a man through a vessel of water a foot thick, the bullet is flattened out without injuring the man; while if nothing intervenes the man is killed.