Evils bear in themselves the causes of their own extirpation. Providence is bringing the old order of things to a close in order to provide place for something better and higher.--Julian Hawthorne. Professor Rowland, in his paper on the "Spectra of Metals," which he read at Leeds, says that the object of his research is primarily to find out what sort of things molecules are, and in what way they vibrate. The primary object of Mr. Keely's researches has been to find out all that he could about the laws that control vibrations, and on this line of research he made his discoveries, as to "what sort of things molecules and atoms are, and in what way they vibrate." One of the editors of the Times, in London, in January, 1891, wrote out this question for Keely to answer:--"What impulse led you primarily into the research of acoustic physics?" Keely replied, "An impulse associated sympathetically with my mental organism from birth, seemingly, as I was acutely sensible of it in my childhood. Before I had reached my tenth year, researching in the realm of acoustic physics had a perfect fascination for me; my whole organism seemed attuned as if it were a harp of a thousand strings; set for the reception of all the conditions associated with sound force as a controlling medium, positive and negative; and with an intensity of enjoyment not to be described. From that time to the present, I have been absorbed in this research, and it has opened up to me the laws that govern the higher workings of nature's sympathetic, hidden forces; leading me gradually on to the solution of the problem relating to the conditions that exist between the celestial and terrestrial outreaches, viz., polar negative attraction." Another question asked by the same editor: "What is the main difficulty to be overcome before completing the system for commercial benefit?" Answer: "The principal difficulty rests in equating the thirds of the thirds of the transmitters (i.e., the gold, silver, and platina sections, of which the transmitting wires are composed) to free them of molecular differentiation. The full control of this force can never be accomplished, until pure molecular equation is established between the nodal interferences (that result in their manufacture) and the chord mass of their sectional parts. When this has been done, the chasm between the alternation of the polar forces, which now exists, preventing the inducing of polar and depolar conditions, will be bridged over and commercial benefits at once established as the result. The devices for inducing these conditions, primarily, are perfect: but the pure, connective link on transmission has to be equated, before continued mechanical rotation and reversion can be attained."