This amount of repetition to some will probably appear to be tedious, but only by varied iteration can alien conceptions be forced on reluctant minds.--Herbert Spencer. The researches of Lodge in England and of Hertz in Germany give us an almost infinite range of ethereal vibrations.... Here is unfolded to us a new and astonishing world,--one which it is hard to conceive should contain no possibilities of transmitting and receiving intelligence.... Here also is revealed to us the bewildering possibility of telegraphy without wires, posts, cables, or any of our present costly appliances.... As for myself, I hold the firm conviction that unflagging research will be rewarded by an insight into natural mysteries, such as now can rarely be conceived.--Professor Wm. Crookes, M.R.A., F.R.S., &c. Vibratory Philosophy teaches that "in the great workshop of Nature there are no lines of demarcation to be drawn between the most exalted speculation and common-place practice, and that all knowledge must lead up to one great result; that of an intelligent recognition of the Creator through His works." "Facts are the body of science; speculation is its soul." It has been said that there is nothing more sublime in the history of mind than the lonely struggles which generate and precede success. After the admission made by Professor Rücker, M.A., at the last meeting of the British Association, that the ether may be "the material of which all matter is composed," and that "we may, perhaps, be able to use and control the ether as we now use and control steam," there would seem to be grounds for hoping that Keely's "lonely and prolonged struggles" to utilize in mechanics the ether product which he obtains from his method of dissociating the elements of water, will be more universally recognized and appreciated than they have yet been. Discovery may be unsought and instantaneous, but the inventions for utilizing discoveries may be, and generally are, the work of years. Keely first imprisoned the ether in 1872, when its existence was denied; or, if admitted by a few, it was called "the hypothetical ether." In 1888, Professor Henri Hertz discovered and announced, in the Revue des Deux Mondes, that the ether is held in a state of bondage in all electro-magnetic engines. Not until this fact had been made known, were there any scientific men, with one notable exception, who were willing to admit it was possible that Keely might also have "stumbled over" the manner of effecting its imprisonment. The nature of Keely's researches, and the length of time in which he has been absorbed by the necessary dead-work, attendant upon research before a discovery can be utilized, may be gathered from a letter recently written by Mr. C. G. Till, of Brooklyn, New York:--