The Religion of Geology and Its Connected Sciences

by Edward Hitchcock

I derive a fourth geological argument for the benevolence of the Deity, from the manner in which the metallic ores are distributed through the earth’s crust.

It can hardly be doubted, by the geologist, that nearly every part of the earth’s crust, and its interior too, have been some time or other in a melted state. Now, as the metals and their ores are usually heavier than other rocks, we should expect that they would have accumulated at the centre of the globe, and have been enveloped by the rocks so as to have been forever inaccessible to man. And the very great weight of the central parts of the earth—almost twice that of granite—leads naturally to the conclusion that the heavier metals may be accumulated there, though this is by no means a certain conclusion; since at the depth of thirty-four miles air would be so condensed by the pressure of the superincumbent mass as to be as heavy as water; water at the depth of three hundred and sixty-two miles would become as heavy as quick-silver; and at the centre steel would be compressed into one fourth, and stone into one eighth, of its bulk at the surface. Still it is most probable that the materials naturally the heaviest would first seek the centre. And yet, by means of sublimation, and expansion by internal heat, or the segregating power of galvanic action, or of some other agents, enough of the metals is protruded towards the surface, and diffused through the rocks in beds, or veins, so as to be accessible to human industry. Here, then, we find divine benevolence, apparently in opposition to gravity, providing for human comfort.

I have said that these metals were accessible to human industry. And it does require a great deal of labor, and calls into exercise man’s highest ingenuity to obtain them. They might have been spread in immense masses over the surface; they might all have been reduced to a metallic state in the great furnace, which we have reason to suppose is always in blast, within the earth. But then there would have been no requisition upon the exertion and energy of man. And to have these called into exercise is an object of greater importance to society than to supply it with the metals. God, therefore, has so distributed the ores as to stimulate man to explore and reduce them, while he has placed so many difficulties in the way as to demand much mental and physical effort for their removal. Man now, therefore, receives a double benefit. While the metals themselves are of immense service, the discipline of body and mind requisite for obtaining them is of still greater value. This is the combined result of infinite wisdom and benevolence.

If I mistake not, there is such a relation between the amount of useful metals and the wants of society as could have resulted only from divine benevolence. The metal most widely diffused, and the only one occurring in all the rock formations, from the oldest to the newest, is iron;—the metal by far the most important to civilized society. This is also by far the most abundant, and easily obtained. It often forms extensive beds, or even mountain masses upon the surface. All the other metals are confined almost exclusively to the older rocks. Among them, lead, copper, and zinc are probably most needed, and accordingly they are next in quantity and in the facility with which they may be explored. Manganese, mercury, chrome, antimony, cobalt, arsenic, and bismuth are more difficult to obtain; but the supply is always equal to the demand. In the case of tin, silver, platinum, and gold, we find some interesting properties to compensate in a great measure for their scarcity. Gold and platinum possess a remarkable power of resisting those powerful agents of chemical change which destroy every thing else. They are never oxidized in the earth, and with a very few exceptions, the most powerful reagents leave them untouched, while platinum will not yield in the most powerful heat of the furnace. Gold, silver, and tin are capable of an astonishing extension, whereby they may be spread over the surface of the more abundant metals to protect and adorn them; and since the discovery of the galvanic mode of accomplishing this, so easily is it done, that I know not but a gold or silver surface is to become as common as metallic articles.

My fifth geological argument for the divine benevolence is derived from the joint and desolating effects of ice and water upon the earth’s surface, both before and after man’s creation.

In northern countries, and perhaps in high southern latitudes, it seems that after the deposition of the tertiary rocks, and after the surface had assumed essentially its present shape, it was subjected for a long time to a powerful agency, whereby the rough and salient parts were worn down and rounded, the rocks in place smoothed and furrowed, valleys scooped out, huge blocks of stone transported far from the parent bed, piled up, and thick accumulations of bowlders, sand, and gravel, strewn promiscuously over the surface. At the commencement of this process, the ocean, probably loaded with ice, stood above a large part of the present continents. It soon began to subside, or the land to rise, and a more quiet action succeeded. The joint action of the ocean and the glaciers on the land ground down into sand, clay, and loam, the coarser drift, and sorted it in the form of beaches, terraces, and alluvial deposits. All this while, both the land and the water seem to have been, for the most part, destitute of inhabitants. But these were the very processes needed for man and his contemporary races, who were to appear during the latter part of the pleistocene period. In other words, the soils were thus got ready for nourishing the vegetation necessary to sustain the new creation, which would convert these desolate and deserted sea-beds into regions of fertility and happiness to teeming millions.

Now, just consider what must have been the effect of these mighty aqueous and glacial agencies upon the earth’s surface. Over the level regions they strewed the finer materials; and where the rocks had been thrown up into ridges and displaced by numerous fissures, or subsequently worn into bluffs and precipices by the ocean, it needed just such an agency to smooth down those irregularities, to fill up those gulfs, to give to the hills and valleys a graceful outline, and to cover all the surface with those comminuted materials that would need only cultivation to make them a fertile soil. Some rocks do, indeed, decompose and form soils; but this process would be too slow, unless in moist and warm regions, where it is easier to find a footing for plants than in climes more uncongenial to their growth. We cannot then hesitate to regard this tremendous agency of ice and water in northern and high southern regions as decidedly beneficial in its influence. It must, indeed, have spread terrible destruction over those regions. But it seems that a time was chosen for its operation when the globe was almost destitute of organic life, and not long before the time when a new and nobler creation than those previously occupying the earth was to be placed upon it. Desolating as this agency must have appeared, and actually was, at the time, yet who can doubt, when we see the ultimate fruits of it, that its origin was divine benevolence?

In the ultimate results of aqueous inundations at the present day, we can trace the same benevolent design. Those floods do, indeed, produce partial evils; nay, life, as well as property, often falls a prey to them. But they produce those alluvial soils which are more prolific of vegetation than any other on the globe. Who has not heard of the fertility of the banks of the Nile, the Niger, the Ganges, the Amazon, and the Mississippi? all of them the fruit of inundations. Truly, such floods as these may be said to clap their hands in praise of the divine goodness.

My sixth geological argument for the divine benevolence is derived from the existence of volcanoes.

The first impression made on the mind by the history of volcanic action is, that its effects are examples rather of vindictive justice than of benevolence. And such is the light in which they are regarded by Mr. Gisborne, an able English divine, in his “Testimony of Natural to Revealed Religion.” He looks, indeed, upon all the disturbances that have taken place in the earth’s crust as evidence of a fallen condition of the world, as mementoes of a former penal infliction upon a guilty race. And aside from the light which geology casts upon the subject, this would be a not improbable conclusion. Take for an example the case of volcanoes and earthquakes.