After the warning given in the history of Huxley's "Bathybius," we may feel quite sure that if Keely had failed to demonstrate the genuineness of his claims by actual experiment, no scientist would have risked the world-wide reputation of a lifetime by endorsement of the discovery of an unknown force, as Professor Leidy has done, while Keely himself was under such a cloud that, to advocate his integrity and uphold the importance of his discovery, has hitherto been enough to awaken doubts as to the sanity of his upholders. Among many others who have written of it from the standpoint of Keely's accountability for the mistakes of the managers of the Keely Motor Company--men who made no pretence of caring for anything but dividends--was one who asserted, in the New York Tribune, that it was a "remarkable delusion, full of tricks too numerous to mention, the exposure of which ought to be made to bring the Keely craze to an end." In the same journal an editorial states that "Mr. Keely appears to have no mechanical ingenuity, his strong point being his ability as a collector. He has one of the largest and best arranged collections of other people's money to be found in the United States. Having, a number of years ago, during a fit of temporary insanity, constructed a machine which, if any power on earth could start it, would explode and pierce the startled dome of heaven with flying fragments of cog-wheels and cranks, he now sits down calmly, and allows this same mechanical nightmare to make his living for him. This is genius; this is John W. Keely; he toils not, neither does he spin, but he has got an hysterical collection of crooked pipes and lob-sided wheels tied up in his back room that extract the reluctant dollar from the pocket of avarice without fail." This is a specimen of the nature of the ridicule which was encountered by Keely's "upholders," as well as by himself. Until Professor Leidy and Dr. Willcox came to the front, in March, 1890, Mr. Keely had no influential supporters, and not one scientist could be found who was ready to encounter the wasps. Such is the position of all defenders of the truth in all ages; but the torch being held aloft, in such hands as have now seized it, the opportunity is given to see what Keely proclaims as truth. We know that science denies the divisibility of atoms, but Keely affirms and demonstrates that all corpuscules of matter may be divided and subdivided by a certain order of vibration. During all these years in which he has given exhibitions of the operation of his generators, liberators, and disintegrators, in turn, each being an improvement, successively, on the preceding one, no one has attempted to give to the public any theory, or even so much as a sensible conjecture, of the origin of the force.