August 5th.--Mr. Keely wrote to one of his friends,--"I have met with an accident to the Liberator. I was experimenting on the third order of intensification, when the rotation on the circuit was thrown down in the compound resonating chamber, which, by the instantaneous multiplication of the volume induced thereby, caused an explosion bursting the metal casing which enclosed the forty resonators, completely dismantling the Liberator. The shock took my senses from me for a few moments, but I was not even scratched this time. A part of the wall was torn away, and resonators and vibrators were thrown all over the room. The neighbourhood was quite lively for a time, but I quieted all fears by telling the frightened ones that I was only experimenting. I allowed everything to remain until Dr. Woods and Mr. Collier had seen the effect of the explosion." The orders of intensification for accelerating dissociation would not be understood by any explanations that could be made, if unaccompanied by the demonstrations witnessed by the late Professor Leidy, Dr. Brinton, and others. When the ether flows from a tube, its negative centre represents molecular sub-division, carrying interstitially (or between its molecules) the lowest order of liberated ozone. This is the first order of ozone and is wonderfully refreshing and vitalizing to those who breathe it. The second order, or atomic separation, releases a much higher grade of ozone; in fact, too pure for inhalation, as it produces insensibility. The third order, or etheric, is the one that has been (though attended with much danger to the operator) utilized by Keely in his carbon register to produce the circuit of high vibration that breaks up the molecular magnetism which is recognized as cohesion. The acceleration of these orders is governed by the introductory impulse on a certain combination of vibratory chords, arranged for this purpose in the instrument, with which Keely dissociates the elements of water; and which he calls a liberator. In molecular dissociation one fork of 620 is used, setting the chords on the first octave. In atomic separation, two forks: one of 620 and one of 630 per second; setting the chords on the second octave. In the etheric three forks: one of 620, one of 630, and one of 12,000, setting the chords on the third octave. Keely's Three Systems. My first system is the one which requires introductory mediums of differential gravities, air and water, to induce disturbance of equilibrium on the liberation of vapour, which only reached the inter-atomic position and was held there by the submersion of the molecular and atomic leads in the 'generator' I then used. It was impossible with these mediums to go beyond the atomic with this instrument; and I could not dispense with the water until my liberator was invented, nor reach the maximum of the full line of vibration. My first system embraces liberator engine and gun.