And the writer believes that this "Law of Attraction" is the underlying cause of all that we call Energy, Force, Power, Motion, etc., in the Physical world. For if "Gravitation" accounts for all "Mass Motion," or "Mechanical Motion"--if Molecular Cohesion, and the vibrations accompanying it, manifest in forms of "Molecular Motion"--and if Atomic "Chemical Affinity" or "Chemism," manifest in "Atomic Motion"--and if even the Corpuscles in their movements obey this same "Law of Attraction" in some form--and if all Force and Energy is but a "Mode of Motion"--then, if all this be true, are we not justified in claiming that this "Law of Attraction" is the Basis of All Energy, Force and Motion? And are we not justified in thinking of this "Law of Attraction" as always manifesting in the direction of drawing together particles of Substance--be those particles suns, planets, masses, molecules, atoms or corpuscles--in pursuance of some basic law imposed upon All-things, by That-which-is-above-Things? The following quotation is interesting, in our consideration of this subject: "There are other forces besides gravity, and one of the most active of these is chemical affinity. Thus, for instance, an atom of oxygen has a very strong attraction for one of carbon, and we may compare these two atoms to the earth and a stone lodged upon the top of a house. Within certain limits, this attraction is intensely powerful, so that when an atom of carbon and one of oxygen have been separated from each other, we have a species of energy of position just as truly as when a stone has been separated from the earth. Thus by having a large quantity of oxygen and a large quantity of carbon in separate states, we are in possession of a large store of _energy_ of position. When we allowed the stone and the earth to rush together, the _energy_ of position was transformed into that of actual motion, and we should therefore expect something similar to happen when the separated carbon and oxygen are allowed to rush together. This takes place when we burn coal in our fires, and the primary result, as far as _energy_ is concerned, is the production of a large amount of heat. We are, therefore, led to conjecture that heat may denote a motion of particles on the small scale just as the rushing together of the stone and the earth denotes a motion on the large. It thus appears that we may have invisible molecular energy as well as visible mechanical _energy_."--_Balfour Stewart._