Hitherto, Macvicar has proceeded analytically, or from the one to the many; now, synthetically, from multiplicity to unity:--he continues:--As to the matter in hand, we may say, shortly, that a world of substances becoming multiple and diffuse, and at last merging into ethereal elements, being now given as the product of the law of assimilation in reference to the immensity of the Creator, the same law, when viewed in reference to the unity of the Creator, leads us to infer a process of quite a contrary character. It leads us to expect to find the ethereal elements tending to construct unities of greater energy than themselves. Then, if all cosmical action is cyclical, matter, when existing free in the ether, must ultimately tend to dissolve into pure ether again; for, if the law of creation is as a cycle, in which, after development and as its fruit, the last term gives the first, then has he grounds for his conjecture that complication in structure is necessary to the segregation of nervous matter, and the construction of a "myo-neuro-cerebral system"; and that ether and matter, after developing a molecular economy, as the mother and nurse of a soul or monad of a higher order than the merely material element, through or by this organism, complete the cycle of the economy of the material nature, and eventually touch upon the spiritual world again and contribute to it. Whether this inference is correct or not, it presents a noble hypothesis for consideration, and one which should command attention at a time when the writings of John Worrell Keely, the discoverer of polar energy, and the inventor of vibratory machinery for the utilization of this force in mechanics, are about to be given to the world, supporting as they do, some of "the unwelcome views" advanced by Macvicar a quarter of a century ago. Although Macvicar and Keely differ in their theories of molecular morphology, they agree entirely in calling the cosmical law of sympathetic association or assimilation the watchword and the law of creation. This true protoplasm, the ether, which Macvicar postulated, Keely claims to have proved "a reality": making use of the ether, which he liberates by vibratory machinery, as the medium of a motive power, which he calls "sympathetic negative attraction." CHAPTER III. THE NATURE OF KEELY'S PROBLEMS. 1885 TO 1887. Too few the helpers on the road, Too heavy burdens in the load. When a movement is willed a current is sent forth from the brain. Sir James Crichton Browne.