Keely has now reached a stage in his researches at which he is able to demonstrate the truth of the hypotheses which he is formulating into a system; and consequently the stage where he can demonstrate whether theories, that have prevailed concerning the cause of physical phenomena, are sound or without basis in fact. Until this stage was reached it would have been as useless to make Mr. Keely's theories known, as it would be to publish a treatise to prove that two and two make five. Scientific men reject all theories in physics in which there is not an equal proportion of science and mathematics, excluding all questions of pure metaphysics. They are right; for, until the world had undergone a state of preparation for another revelation of truth, the man who demonstrated all that Keely is now prepared to demonstrate would have been burned alive as a wizard. To use the words of Babcock, one of Keely's staunchest adherents, in 1880:--"This discoverer has entered a new world, and although an unexplored region of untold wealth lies beyond, he is treading firmly its border, which daily widens as with ever-increasing interest he pursues his explorations. He has passed the dreary realm where scientists are groping. His researches are made in the open field of elemental force, where gravity, inertia, cohesion, momentum, are disturbed in their haunts and diverted to use; where, from unity of origin, emanates infinite energy in diversified forms," and, to this statement I would add--where he is able to look from nature up to nature's God, understanding and explaining, as no man before ever understood and explained, how simple is "the mysterious way in which God works His wonders to perform."