The experiments on the 12th closed with the disintegration of water, twelve drops of which we saw dropped, drop by drop, into the small sphere attached to the disintegrator after exhausting the air by suction. A pressure of over 20,000 pounds to the square inch was shown to the satisfaction of all present, and when Mr. Willcox accepted Mr. Keely's invitation to take a seat on the arm of the lever, adding his 260 pounds to the weight, applause broke forth. Mr. Keely showed control of the ether, inter-atomic subdivision, by graduating the escape of the residue, as he allowed it to discharge itself with a noise like the rushing of steam to an expulsion as gentle as the breathings of an infant. The three subdivisions acted simultaneously, showing instantaneous association and disassociation. The sympathetic globe was operated upon, 120 revolutions a second, ceasing the instant that the wire was detached. I regret to say that Professor Ira Remsen was prevented, I fear by Professor Rowland, from witnessing any one of this series of experiments as he intended doing; nor have I been able to get the opinion of any physicist in whom I felt any confidence; but Mr. Keely is satisfied to have the support of such men as J. M. Willcox, Ph.D., and Professor Leidy, LL.D. Dr. Leidy was awarded the Lyell Medal in 1884, when in London, and the Cuvier Prize in 1888, from the Academy of Sciences in France. He is known in America not only as possessing the broadest of minds and the gentlest of natures, but as holding in his heart that love for, and reverence of, truth and justice which alone can confer the power of forming a correct and a just judgment. I would like to have you make known in England that Mr. Keely is indebted to Macvicar's Sketch of a Philosophy for turning his attention, in 1884, to researches on the structure of ether, and to Mrs. F. J. Hughes (not Mrs. Watts Hughes), for the suggestions in her work on Harmonies of Tones and Colours Developed by Evolution, which led him into the line of experiment that will enable him to show on a disc the various colours of sound, each note having its colour, and to demonstrate in various ways Mrs. Hughes' own words "that the same laws which develop musical harmonies develop the universe," etc., etc.