We have no reason to suppose that the laws which regulate mixtures of gases and vapors did not prevail in the period in question. It is probable that these laws are as old as the creation of matter; but the condition of our earth up to the second day must have been such as prevented them from operating as at present. Such a condition might possibly be the result of an excessive evaporation occasioned by internal heat. The interior of the earth still remains in a heated state, and includes large subterranean reservoirs of melted rock, as is proved by the increase of temperature in deep mines and borings, and by the widely extended phenomena of hot springs and volcanic action. At the period in question the internal temperature of the earth was probably vastly greater than at present, and perhaps the whole interior of the globe may have been in a state of igneous fluidity. At the same time the external solid crust may have been thin, and it was not fractured and thickened in places by the upheaval of mountain chains or the deposition of great and unequal sheets of sediment; for, as I may again remind the reader, the primitive chaos did not consist of a confused accumulation of rocky masses, but the earth's crust must then have been more smooth and unbroken than at any subsequent period. This being the internal condition of the earth, it is quite conceivable, without any violation of the existing laws of nature, that the waters of the ocean, warmed by internal heat, may have sent up a sufficient quantity of vapor to keep the lower strata of air in a constant state of saturation, and to occasion an equally constant precipitation of moisture from the colder strata above. This would merely be the universal operation of a cause similar to that which now produces fogs at the northern limit of the Atlantic Gulf Stream, and in other localities where currents of warm water flow under or near to cooler air. Such a state of things is more conceivable in a globe covered with water, and consequently destitute of the dry and powerfully radiating surfaces which land presents, and receiving from without the rays, not of a solar orb, but of a comparatively feeble and diffused luminous ether. The continued action of these causes would gradually cool the earth's crust and its incumbent waters, until the heat from without preponderated over that from within, when the result stated in the text would be effected. The statements of our primitive authority for this condition of the earth might also be accounted for on the supposition that the permanently gaseous part of the atmosphere did not at the period in question exist in its present state, but that it was on the second day actually elaborated and caused to take its place in separating the atmospheric from the oceanic waters. The first is by far the more probable view; but we may still apply to such speculations the words of Elihu, the friend of Job: