What the chemist's retort has failed to accomplish has been effected by the discoverer of latent force existing in all forms of matter, where it is held locked in the interstitial spaces, until released by a certain order of vibration. As yet, the order of vibration which releases this force, has not been discovered in any forms of matter, excepting in the constituents of gunpowder, dynamite, and water. The Chinese are supposed to have invented, centuries before the birth of Christ, the explosive compound gunpowder, which requires that order of vibration known as heat to bring about a rupture of the molecules of the nitre, sulphur, and charcoal, of which it is composed. Dynamite requires another order of vibration--concussion--to release the latent force held in the molecular embrace of its constituents. The order of vibration discovered by Keely, which causes the rupture of the molecular and atomic capsules of the constituents of water, must remain--though in one point only--a secret with the discoverer, until he has completed his system for science, and some one patentable invention. Let physicists be incredulous or cautious, it matters not to him. He has proved to his own satisfaction the actual existence of atoms and their divisibility--and, to the satisfaction of thousands capable of forming an opinion, the existence of an unknown force. Men of science have not been in any haste to aid him, either with money or with sympathy, in his researches; and he will take his own time to bestow upon them the fruit of those researches. Those who have not clear ideas as to the nature of elementary bodies--molecules and atoms--may like to know that elements are defined as simple substances, out of which no other two or more essentially differing substances have been obtained. Compounds are bodies out of which two or more essentially differing substances have been obtained. A molecule is the smallest part of a compound or element that is capable of existence in a free state. Atoms are set down, by those who believe in the atomic theory, as the indivisible constituents of molecules. Thus, an element is a substance made up of atoms of the same kind; a compound is a substance made up of atoms of unlike kind. Over seventy elements are now known, out of which, or compounds of these with each other, our globe is composed, and also the meteoric stones which have fallen on our earth. The science of chemistry aims at the experimental examination of the elements and their compounds, and the investigation of the laws which regulate their combination one with another. For example, in the year 1805, Gay-Lussac and Von Humboldt found that one volume of oxygen combines with exactly two volumes of hydrogen to form water, and that these exact proportions hold good at whatever temperature the gases are brought into contact. Oxygen and hydrogen are now classified as elementary bodies.