time as live on crustacea and the shelled molluscs—such as the Wrasse or rock-fish family, and at least one of the Goby family, the sea-wolf—have an apparatus of crushing teeth greatly more solid and strong than the teeth of such of their contemporaries as are either herbivorous or feed on the weaker families of their own class. A similar remark applies to the ancient sharks, as contrasted with those of later times. So long as the strongly-armed ganoidal order prevailed in nature, the sharks were furnished with massive crushing teeth; but when the ganoids waned in creation, and the soft-scaled cycloid and ctenoid orders took and amply filled the place which they had left vacant, the well known modern form of sharks' teeth was introduced—a form much rather suited for cutting soft bodies than for crushing hard ones. In fine, the offensive weapons of the times of the Coal Measures seem very formidable, just as those personal weapons of the middle ages seem so that were borne at a time when every soldier took the field cased in armor of proof. The slim scimitar or slender rapier would have availed but little against massive iron helmets or mail coats of tempered steel. And so the warriors of the period armed themselves with ponderous maces, battle-axes as massive as hammers, and double-handed swords of great weight and strength.
Before passing onwards to other and higher classes and orders, as they occurred in creation, permit me to make the formidable armor of the earlier fishes, offensive and defensive, the subject of a single remark. We are told by Goethe, in his autobiography, that he had attained his sixth year when the terrible earthquake at Lisbon took place—"an event," he says, "which greatly disturbed" his "peace of mind for the first time." He could not reconcile a catastrophe so suddenly destructive to thousands, with the ideas which he had already formed for himself of a Providence all-powerful and all-benevolent. But he afterwards learned, he tells us, to recognize in such events the "God of the Old Testament." I know not in what spirit the remark was made; but this I know, that it is the God of the Old Testament whom we see exhibited in all nature and all providence; and that it is at once wisdom and duty in his rational creatures, however darkly they may perceive or imperfectly they may comprehend, to hold in implicit faith that the Adorable Monarch of all the past and of all the future is a King who "can do no wrong." This early exhibition of tooth, and spine, and sting—of weapons constructed alike to cut and to pierce—to unite two of the most indispensable requirements of the modern armorer—a keen edge to a strong back—nay, stranger still, the examples furnished in this primeval time, of weapons formed not only to kill, but also to torture—must be altogether at variance with the preconceived opinions of those who hold that until man appeared in creation, and darkened its sympathetic face with the stain of moral guilt, the reign of violence and outrage did not begin, and that there was no death among the inferior creatures, and no suffering. But preconceived opinion, whether it hold fast, with Lactantius and the old Schoolmen, to the belief that there can be no antipodes, or assert, with Caccini and Bellarmine, that our globe hangs lazily in the midst of the heavens, while the sun moves round it, must yield ultimately to scientific truth. And it is a truth as certain as the existence of a southern hemisphere, or the motion of the earth round both its own axis and the great solar centre, that, untold ages ere man had sinned or suffered, the animal creation exhibited exactly its present state of war—that the strong, armed with formidable weapons, exquisitely constructed to kill, preyed upon the weak; and that the weak, sheathed, many of them, in defensive armor equally admirable in its mechanism, and ever increasing and multiplying upon the earth far beyond the requirements of the mere maintenance of their races, were enabled to escape, as species, the assaults of the tyrant tribes, and to exist unthinned for unreckoned ages. It has been weakly and impiously urged—as if it were merely with the geologist that men had to settle this matter—that such an economy of warfare and suffering—of warring and of being warred upon—would be, in the words of the infant Goethe, unworthy of an all-powerful and all-benevolent Providence, and in effect a libel on his government and character. But that grave charge we leave the objectors to settle with the great Creator himself. Be it theirs, not ours, according to the poet, to
"Snatch from his hand the balance and the rod,
Rejudge his justice, be the god of God."
Be it enough for the geologist rightly to interpret the record of creation—to declare the truth as he finds it—to demonstrate, from evidence no clear intellect ever yet resisted, that he, the Creator, from whom even the young lions seek their food, and who giveth to all the beasts, great and small, their meat in due season, ever wrought as he now works in his animal kingdom—that he gave to the primeval fishes their spines and their stings—to the primeval reptiles their trenchant teeth and their strong armor of bone—to the primeval mammals their great tusks and their sharp claws—that he of old divided all his creatures, as now, into animals of prey and the animals preyed upon—that from the beginning of things he inseparably established among his non-responsible existences the twin laws of generation and of death—nay, further, passing from the established truths of Geologic to one of the best established truths of Theologic science—God's eternal justice and truth—let us assert, that in the Divine government the matter of fact always determines the question of right, and that whatever has been done by him who rendereth no account to man of his matters, he had in all ages, and in all places, an unchallengeable right to do.
The oldest known reptiles appear just a little before the close of the Old Red Sandstone, just as the oldest known fishes appeared just a little before the close of the Silurian System. What seems to be the Upper Old Red of our own country, though there still hangs a shade of doubt on the subject, has furnished the remains of a small reptile, equally akin, it would appear, to the lizards and the batrachians; and what seems to be the Upper Old Red of the United States has exhibited the foot-tracks of a larger animal of the same class, which not a little resemble those which would be impressed on recent sand or clay by the alligator of the Mississippi, did not the alligator of the Mississippi efface its own footprints (a consequence of the shortness of its legs) by the trail of its abdomen. In the Coal Measures, the reptiles hitherto found—and it is still little more than ten years since the first was detected—are all allied, though not without a cross of the higher crocodilian or lacertian nature, to the batrachian order—that lowest order of the reptiles to which the frogs, newts, and salamanders belong. These reptiles of the carboniferous era, though only a few twelvemonths ago we little suspected the fact, seem to have been not very rare in our own neighborhood. My attention was called some time since by Mr. Henry Cadell—an intelligent practical geologist—to certain appearances in one of the Duke of Buccleuch's coal pits near Dalkeith, which lie regarded as the tracks of air-breathing quadrupeds; and, after examining a specimen, containing four footprints, which he had brought above ground, and which not a little excited my curiosity, we visited the pit together. And there, in a side working about half a mile from the pit mouth, and about four hundred feet under the surface, I found the roof of the coal, which rose at a high angle, traversed by so many foot-tracks, upwards, downwards, and athwart, that it cost me some little care to trace the individual lines. At least one of the number, however—consisting of eleven footprints of the right and as many of the left foot—I was able to trace from side to side of the working, a distance of four yards; and several of the others for shorter spaces. The prints, which were reverses or casts in a very coarse sandstone, were about thirtecn inches apart across the creature's chest, and rather more than a foot apart from its fore to its hinder limbs. They were alternately larger and smaller—the smaller (those of the fore feet) measuring about four inches in length, and the larger (those of the hinder feet) about six inches. The number of toes seemed to be alternately four and five; but from the circumstance that the original matrix on which the tracks had been impressed—a micaceous clay resolved into a loose fissile sandstone—had fallen away in the working of the pit, leaving but the boldly-relieved though ill-defined casts on the coarse sandstone, I could not definitely determine the point. Enough, however, remained to show that at that spot—little more than a mile from where the Duke of Buccleuch's palace now stands—large reptiles had congregated in considerable numbers shortly after the great eight feet coal seam of the Dalkeith basin had been formed. In another part of the pit I found foot-tracks of apparently the same animal in equal abundance, but still less distinct in their state of keeping. But they bore testimony with the others to the comparative abundance of reptilian life at an early period, when the coal-bearing strata of
