The requirement of every demonstration is that it shall give sufficient proof of the truth it asserts. Any demonstration which does less than this cannot be relied upon, and no demonstration ever made has done more than this. We ought to know that the possibilities of success are in proportion as the means applied are adequate or inadequate for the purpose; and, as different principles exist in various forms of matter, it is quite impossible to demonstrate every truth by the same means or the same principles. I look upon it as the prejudice of ignorance which exacts that every demonstration shall be given by a prescribed rule of science, as if the science of the present were thoroughly conversant with every principle that exists in nature. The majority of physicists exact this, though some of them know that these means are entirely inadequate. Every revolving body is impressed by nature with certain laws making it susceptible of the operation of force which, being applied, impels motion. These laws may all be expressed under the general term, "Forces," which, though various in their nature, possess an equalizing power; controlling each other (as in the case of the atomic triplets) in such a way that neither can predominate beyond a certain limit. Consequently, these bodies can never approach nearer each other than a fixed point: nor recede from each other beyond another certain point. Hence, these forces are, at some mean point, made perfectly equal, and therefore may be considered as but one force; therefore as but one element. It matters not that other and disturbing forces exist outside or inside the space these bodies revolve in, because if this force must be considered as acting uniformly--applying itself to each of these bodies in a way to produce a perfect equation on all, it is as if this outside force were non-existing. The true study of the Deity by man being in the observation of His marvellous works, the discovery of a fundamental, creative law of as wide and comprehensive grasp as would make this etheric vapour a tangible link between God and man would enable us to realize, in a measure, the actual existing working qualities of God Himself (speaking most reverentially) as he would those of a fellow-man. Such a link would constitute a base or superstructure of recognition, praise, worship and imitation, such as seems to underlie the whole Biblical structure as a foundation.--Keely. Dr. Macvicar, in his theories of the bearing of the cosmical law of assimilation on molecular action, says: "During this retreat of matter into ether in single material elements or units of weight, the molecules and masses from which such vaporization into the common vapour of matter is going on, may be expected to be phosphorescent." This surmise Keely has, over and over, demonstrated, as a fact; also showing how gravitation operates as a lever: etheric wave motion: concentration under vibratory concussion: and negative vacuous tenuity.