And he lays down a law which he believes is absolute, and which is thus expressed:

“By the attraction of caloric for ponderable matter, it unites and holds together all things; by its self-repulsive energy it separates and expands all things.”

This, of course, is almost the Occult explanation of cohesion. Dr. Richardson continues:

As I have already said, the tendency of modern teaching is to rest upon the hypothesis [pg 573]... that heat is motion, or, as it would, perhaps, be better stated, a specific force or form of motion.[896]

But this hypothesis, popular as it is, is not one that ought to be accepted to the exclusion of the simpler views of the material nature of sun-force, and of its influence in modifying the conditions of matter. We do not yet know sufficient to be dogmatic.[897]

The hypothesis of Metcalfe respecting sun-force and earth-force is not only very simple, but most fascinating.... Here are two elements in the universe, the one is ponderable matter.... The second element is the all-pervading ether, solar fire. It is without weight, substance, form, or colour; it is matter infinitely divisible, and its particles repel each other; its rarity is such that we have no word, except ether,[898] by which to express it. It pervades and fills space, but alone it too is quiescent—dead.[899] We bring together the two elements, the inert matter, the self-repulsive ether [?] and thereupon dead [?] ponderable matter is vivified; [Ponderable matter may be inert but never dead—this is Occult Law.] ... through the particles of the ponderable substance the ether [Ether's second principle] penetrates, and, so penetrating, it combines with the ponderable particles and holds them in mass, holds them together in bond of union; they are dissolved in the ether.

This distribution of solid ponderable matter through ether extends, according to the theory before us, to everything that exists at this moment. The ether is all-pervading. The human body itself is charged with the ether [Astral Light rather]; its minute particles are held together by it; the plant is in the same condition; the most solid earth, rock, adamant, crystal, metal, all are the same. But there are differences in the capacities of different kinds of ponderable matter to receive sun-force, and upon this depends the various changing conditions of matter; the solid, the liquid, the gaseous condition. Solid bodies have attracted caloric in excess over fluid bodies, and hence their firm cohesion; when a portion of molten zinc is poured upon a plate of solid zinc, the molten zinc becomes as solid because there is a rush of caloric from the liquid to the solid, and in the equalization the particles, previously loose or liquid, are more closely brought together.... Metcalfe himself, dwelling on the above-named phenomena, and accounting for them by the unity of principle of action, which has already been explained, sums up his argument in very clear terms, in a comment on the densities of various bodies. “Hardness and softness,” he says, “solidity and liquidity, are not essential conditions of bodies, [pg 574]but depend on the relative proportions of ethereal and ponderable matter of which they are composed. The most elastic gas may be reduced to the liquid form by the abstraction of caloric, and again converted into a firm solid, the particles of which would cling together with a force proportional to their augmented affinity for caloric. On the other hand, by adding a sufficient quantity of the same principle to the densest metals, their attraction for it is diminished when they are expanded into the gaseous state, and their cohesion is destroyed.”

Having thus quoted at length the heterodox views of the great “heretic”—views that to be correct, need only a little alteration of terms here and there—Dr. Richardson, undeniably an original and liberal thinker, proceeds to sum up these views, and continues:

I shall not dwell at great length on this unity of sun-force and earth-force, which this theory implies. But I may add that out of it, or out of the hypothesis of mere motion as force, and of virtue without substance, we may gather, as the nearest possible approach to the truth on this, the most complex and profound of all subjects, the following inferences:

(a) Space, inter-stellary, inter-planetary, inter-material, inter-organic, is not a vacuum, but is filled with a subtle fluid or gas, which for want of a better term[900] we may still call, as the ancients did, Aith-ur—Solar Fire—Æther. This fluid, unchangeable in composition, indestructible, invisible,[901] pervades everything and all [ponderable] matter,[902] the pebble in the running brook, the tree overhanging, the man looking on, is charged with the ether in various degrees; the pebble less than the tree, the tree less than man. All in the planet is in like manner so charged! A world is built up in ethereal fluid, and moving through a sea of it.