Chapter XV: Part II (4)

The Flood, however, is not left to do the whole geologic work, by even such of the anti-geologists as assign to it the largest share. A great unrecorded convulsion which accompanied the Fall is held by some of their number to have greatly assisted, by laying down the older formations of the fossiliferous rocks; and very much is said to have been done during the extended antediluvian period that succeeded it. One of perhaps the most amusing though least known of the writers that take this special view is a Scotchman, resident in a secluded provincial town, who for the last twelve or fifteen years has been printing ingenious little books against the infidel geologists, and getting letters of similar character inserted in such of our country newspapers as are ambitious of rendering their science equal to their literature. And from the great trouble which he has taken with the writings of the individual who now addresses you, he seems to regard them as peculiarly unsolid and dangerous. According to this profound cosmogonist, the world before the Fall was rather more than twice its present size, and very artificially constructed.[39] It was a hollow ball, supported inside by a framework of metal wrought into hexagonal reticulations, somewhat like the framework of the great iron bridge over the river Wear at Sunderland; and which had an open space in its centre, occupied by a vast tubular furnace lying direct south and north, which threw out huge volumes of flame towards the poles. Over the reticulated framework there rose a great, thick _firmament_ of metal, which formed the inner shell of the globe; over the metal there lay a considerably thicker shell of granite; and over the granite, a thinner shell of a substance not specified, perhaps not known, but which, from its being completely water-tight, served the purpose of the layer of asphalt or _terra cotta_ which the architect spreads over his flat roofs, or on the tops of his sloping terraces, afterwards to be covered with soil and laid out into gardens. Such, it seems, was that portion of the framework of our great globe which corresponded to the hollow lath and plaster framework of the little globes used in schools; while its uppermost layer,--correspondent with the slips of the map which the geographer pastes on the model and then varnishes,--was formed of earth and water, economically laid out into "most useful and tasteful configurations,"--the earth into pretty little rising grounds and valleys, and the water into seas and lakes of no great extent, but which formed, from their very handsome combinations, "a terraqueous surface all over PERFECTLY PARADISAICAL." Over this exquisitely neat earth there lay an enveloping atmosphere, greatly thinner and less dense than the air at present is, and incapable, in consequence, of being agitated by storms; while directly over the northern and southern extremities of the world the polar auroras, now so fitful and broken, extended in a permanent arch, and gave light, during the long dark winters, to the regions lying below. And as warmth was as necessary to the paradisaical perfection of these districts as light, they received the necessary heat from the great double-acting furnace in the interior, which, belching out flames at both ends, acted powerfully against the polar portions of the metallic crust or shell, and thus maintained the necessary glow in the absence of the sun, on the principle on which a frying-pan or Scotch _girdle_ is heated when placed by the cookmaid over the fire. And such, according to this excellent world-fashioner and very zealous man, was the construction of that unblighted and unbroken earth which was of old pronounced to be "very good." The Fall, however, produced a most remarkable and singularly disastrous change. The earth was somehow partially crushed and broken, contemporaneously with the event,--like a strong fishing basket when it accidentally falls from a coach-top under the wheel; and, from a most interesting colored copperplate that illustrates one of the author's treatises (for he draws as well as he writes), the exact damage which it received can be minutely estimated. The interior network was compressed into all sorts of irregular polygons; the iron firmament was broken into great fragments,--some of which may be seen in the print hanging down into the hollow interior, like patches of broken plaster dangling from a ceiling, suspended by the hairs originally employed to give the necessary tenacity to the lime. The great granitic shell was also broken, but broken so nicely, on the principle of the arch, that the pieces remained in nearly their original places. Finally, vast rents are seen to occur in the cement and soil of the outer crust; and these great rents, which must have formed enormous gulfs and deep interminable ravines, were destined, it would seem, to perform a most important part in the future geology of the globe. Forming impassable lines of demarcation between the several portions into which they broke up the earth's surface, they imprisoned the recently created animals in separate groups, kept as completely from mixing together as the fallow-deer of one loftily-walled park are kept from mixing with the white oxen of another loftily-walled park, or as the kangaroos or duck-billed quadrupeds of Australia are kept by the surrounding ocean from mixing with the tigers of Sumatra or the tortoises of Madagascar. I employ the writer's own happy illustration:--"In some places these fragments" of the earth's crust "would be piled more or less above each other, and in others quite detached and isolated, like fragments of ice on the bank of a river after a thaw." They would of course be on very different levels, each having, as I have said, a distinct group of animals of its own; and when, after the lapse of nearly two thousand years, the great catastrophe of the Flood came on, it would necessarily find, as it rose along the levels, and submerged platform after platform in succession, a different and yet different set of creatures to kill. To borrow from the description of this ingenious cosmogonist, "those on the lower fragments would be first engulphed, and their races completely extinguished from off the surface, and deposited in the earth; then those on higher and higher upwards, till the whole became submerged. And we have only to suppose that man, with the present survivors, were those that occupied one of the higher table-lands when the Flood commenced (and of course in that case Noah could collect into the ark only out of those of his own country); then the result would be, that man and his present contemporaries would be among the last overwhelmed. This will sufficiently account for the fact of his and their remains not being found deep in the earth....

"The two most interesting geological facts therefore, namely, that distinct organisms are to be found in distinct formations respectively; and secondly, _that no remains of man, and few or none of the other races at present surviving, are to be found in any but comparatively recent formations,_--these two grand facts of geology, we say, instead of pointing back to vast cycles of ages before the creation, seem to point merely to the peculiar physical circumstances of the fallen planet in the interval between those two eventful stages in its history, the Fall and Flood, and the natural consequences of these circumstances in causing distinct divisions, and some of these of different elevations, among the organic living creatures, during the interval." One other circumstance completes this really original and beautiful hypothesis. The cosmogonist holds that the Flood,--no mere tranquil rising of the waters, as some suppose,--was accompanied by terrible convulsions, which reduced to utter ruin the already shattered earth. The granitic dome fell inwards upon the central furnace; and the fires, bursting outwards under the enormous pressure, found vent at the surface, and made the volcanoes. And this collapsed and diminished world,--scarce half the bulk of the old one,--with no heating furnace under its polar regions, nor aught save the merest tatters of an aurora flitting occasionally over them,--greatly too dense in itself, and surrounded by a greatly too dense atmosphere,--with its huge mountains, vast oceans, wide steppes, and arid deserts, with its snows, its frosts, its drenching rains, its horrible tempests, its terrible thunder storms, and devastating earthquakes,--all alike frightful defects, not in the original plan,--is not only unlike the primeval world, not very good, or, unlike the antediluvian world, tolerably good, but not good at all. "On taking a bird's-eye view of the geographical and hydrographical features or superficies of the globe," says this bold writer, "any unprejudiced person must at once admit, that in either of these departments there is scarce a trace of that beautiful, tasteful, and economical design which we have a right to expect from the admitted qualities of the great Author, and his avowed object in the structure and report of it when newly finished." It is added, however, that "its _present object_, as the _Siberia_--the penal settlement--of expatriated rebels, it is in its _present state_ well calculated to fulfil."

It may be worth mentioning, that the writer who sets himself after a fashion so peculiar to assert and justify the ways of Providence against the geologists resides in one of the loveliest districts in Scotland,--a district, however, shaggy with rock, and overshadowed by great mountains, and occasionally visited by earthquake tremors, and both snow and thunder storms, and so, with all its wild beauty to other eyes, merely, I must suppose, one of the rougher districts of the penal Siberia in his. He is, indeed, particularly severe upon mountains; though not, as he tells us, wholly devoid of a lurking prejudice in their favor. But what weak prejudice might palliate or plead for, his better judgment condemns. "See," says this judicious writer, "vast districts of the globe disfigured by tremendous masses of rugged and almost barren mountains.... What, cry some, would you bury as deformities the lofty peak and rugged mountain brow, nature's palaces,--generally the grandest and most sublime objects in natural scenery! We cordially assure the reader we are by no means prejudiced against these grand objects; _for if prejudice we have on the subject, it is rather on the other side_. It is therefore the force of evidence alone makes us,--reluctantly we admit,--give up these to rank among the derangements and deformities of nature. She, according to her usual _taste_ and _economy_, would never be at the expense of rearing, and that upon ground _that might have otherwise been much better occupied_, such unwieldy, useless masses of matter, merely for the sake of gratifying the taste for grandeur and sublimity in a few of her sons, nor, indeed, for any other use we ever heard ascribed to them.... According to _our_ test, a rich and gently undulatory surface, intersected with rivulets and sheets of water, in the places taken up by these elevations, would be far better, as combining in the highest degree the _utile cum dulce_."[40] To such of my audience as are familiar with Dr. Thomas Burnet's "Sacred Theory of the Earth" (1684), that revolution in the cycle of hypothesis to which I have referred, and through which the visionaries of the later ages return to the dreams which had occupied the visionaries of an earlier time, must be sufficiently apparent in this passage. For not only does Burnet speak after the same manner of hills and mountains, but also of an idle, ill-founded prejudice entertained in their favor. We find him thus summing up a general survey of the mountains of the globe:--"Look upon these great ranges: in what confusion do they lie! They have neither form nor beauty, nor shape, nor order, no more than the clouds in the air. Then, how barren, how desolate, how naked are they! How they stand neglected by nature! Neither the rains can soften them, nor the dews from heaven make them fruitful. I give this short survey of the mountains of the earth _to help to remove that prejudice we are apt to have_, or that conceit that the present earth is regularly formed.... There is nothing in nature," adds this writer, "more shapeless and ill-figured than an old rock or a mountain."

I leave it to my audience to determine how far this depreciatory view,--whether regarded as that of Dr. Burnet or of the modern anti-geologist,--agrees with the estimate of the higher minds, or whether it manifests the proper respect for the adorable Being who, in his infinite wisdom, made our world what it is. Let me next show that some of even the abler and more respectable anti-geologists exhibit no very profound veneration for the letter of Scripture, when, instead of bearing, as they think, against the deductions of their opponents, they find it directly opposed to fancies of their own. It is held by not a few among them, that at the Deluge the sea and land changed places. When the waters receded, it was found, they allege, that the old land had become ocean, and the old ocean had become land; and as there are certain rivers which are described in Scripture as flowing beside Eden, and which, judging by the names given them, still exist, it has become imperative on the assertors of the hypothesis to show that the rivers which now drain tracts of what they hold was then sea, and that fall into seas which they hold were then land, could not by any possibility have formed the boundaries of the old Adamic garden. Let us mark how Mr. Granville Penn,--certainly one of the most extensively informed of his class,--deals with this difficulty.[41] There are, he argues, certain great corruptions of Scripture. What had been at first written as marginal notes by uninspired men, and were in some cases very erroneous and absurd, came in the course of transcription to be transferred, wholly by mistake, from the side of the page into the body of the text; and thus, in at least a few places, the Scriptures were vitiated, and now declare, instead of Divine truth, what is neither sense nor fact. And on this very general, and certainly most perilous ground, he goes on to argue, unsupported by a single ancient manuscript, and solely on what he terms internal evidence, that the verses in Genesis which conflict with his hypothesis must be regarded as mere idle glosses, ignorantly or surreptitiously introduced into the text by the ancient copyists. "In the second chapter of Genesis," we find him saying, "_there appears an internal critical evidence_ of an insertion of the 11th, 12th, 13th, and 14th verses, similar to that of the 4th verse of the 5th chapter of St. John, and constituting, in a similar manner, a _parenthesis_ intersecting the thread of the narrative, and introduced solely for a similar purpose of illustration. It does not wear the character of the simple narrative in which it appears, but _of the surcharge of the gloss or note of a later age, founded upon the fanciful traditions then prevailing with respect to the situation of the ancient Paradise_." This certainly is cutting the knot; and, if erected into a precedent by the geologist, would no doubt greatly facilitate the labor of reconciliation. It would, however, be perilous work for _him_. "A wolf," says Plutarch, "peeping into a hut where a company of shepherds were assembled, saw them regaling themselves with a joint of mutton. 'Ye gods!' he exclaimed, 'what a clamor these men would have raised if they had caught _me_ at such a banquet.'" I need scarcely add, that the hypothesis in whose behalf Scripture is thus divested of its authority, and recklessly cast aside, is entirely a worthless one; and that the various continents of the globe, instead of all dating from one period little more than four thousand years back, are of very various ages,--some of them comparatively modern, though absolutely old in relation to human history; and some of so hoar an antiquity, that the term since man appeared upon earth might be employed as a mere unit to measure it by.

It need not surprise us that a writer who takes such strange liberties with a book which he professes to respect, and which he must have had many opportunities of knowing, should take still greater liberties with a science for which he entertains no respect whatever, and of whose first principles he is palpably ignorant. And yet the wild recklessness of some of his explanations of geological phenomena must somewhat astonish all sufficiently acquainted with the science to know that the place and relations of its various formations have been long since determined, and now as certainly form the regulating data of the practical miner, as the places and relations long since determined by the geographer form the regulating data of the practical navigator or engineer. It is as certain, for instance, that the Oolitic system underlies the Green Sand and the Chalk, with all the various formations of the Tertiary division,--Eocene Miocene, Pliocene, and Pleistocene,--as that York is situated to the south of Edinburgh, or that both these cities lie very considerably to the north of London and Paris. And the anti-geologist who would argue, in the heat of controversy, that the Oolite and the Pleistocene were contemporaneous deposits, would be no more worthy of reply than the anti-geographer who would assert, in order to serve some argumentative purpose, that the North Cape lies in the same latitudinal parallel as South California, or that Terra del Fuego is but a day's sailing from Iceland. And yet such, as I intimated on a former evening, is the line taken up by Mr. Granville Penn, in dealing with the difficulties of the Kirkdale Cave, so remarkable for its accumulations of gnawed bones of the Pleistocene ages,--especially for its bones of hyænas, tigers, bears, wolves, rhinoceroses, and elephants. The cave occurs in the moorlands of Yorkshire, in a limestone rock of that Oolitic division to which the Oxford Clay and the Coral Rag belong, and contains corals and shells that had passed into extinction long even ere the Tertiary period began; while in the cave itself, mixed with bones of the extinct mammals of the geologic age in immediate advance of the present one, there have been found the contemporary remains of animals that still live in our fields and woods, such as the hare, the rabbit, the weasel, and the water rat. And we find Mr. Penn assigning both the Oolitic rock in which the cave is hollowed, and the mammalian remains of the cave itself, equally to the period of the deluge. The limestone existed at that time, it would seem, as a soft calcareous paste, into which the animal remains, floated northwards from intertropical regions on the waters of the Flood, were precipitated in vast quantities, and sank, and then, fermenting under the putrefactive influences, the gas which they formed blow up the yielding lime and mud around them into a long narrow cave, just as a glass-blower blows up a bottle, or as a little yeast blows up into similar but greatly smaller cavities a bit of leaven. And the stalactites and stalagmites which encrust the Kirkdale Cave are, Mr. Penn holds, simply the last runnings of the lime that exuded after the general mass had begun to set. Certainly any one disposed to take such liberties with the Bible on the one hand, and with geologic science on the other, as those taken in the given instances by this most formidable of the anti-geologists, could have but little difficulty in making either Scripture as geological or geology as Scriptural as he had a mind. His chief danger would be that of making the sounder theologians just a little angry, and of escaping, unless quoted for the joke's sake, the notice of the geologists altogether. In truth, the extreme absurdity of our later anti-geologists in virtually contending, in the controversy, that _their_ ignorance of an interesting science, founded on millions of determined facts, ought to be permitted to weigh against the knowledge of the men who have studied it most thoroughly, forms their best defence. It secures them against all save neglect. As, however, some of their number are well meaning men, who would not be ridiculous if they could help it, and only oppose themselves to the geologists because they deem them mischievous and in error, it may be worth while showing them, by an example or two, the ludicrous nature of the positions which in their honest ignorance they permit themselves to occupy, and the real scope and bearing of the arguments which they unwittingly permit themselves to use. I shall adduce two several instances of reasoning, directed by the anti-geologists _against_ their antagonists (as they themselves believed), but which, from their ignorance of the true state of the argument, and of the bearing of the facts with which they dealt, in reality made out for these antagonists as strong a case as they could possibly have made out for themselves. And I am sure that, rather than be found siding with their opponents, the anti-geologists would be content even to acquire a little geology.

I shall select my first instance from the records of the annual controversy which used to rage some ten or fifteen years ago, in sermons, newspapers, and magazines, immediately after every meeting of the British Association. A religious Dublin newspaper,--the "Statesman and Record,"--since extinct, took always an active part in these discussions on the anti-geological side, and boldly affirmed, as in a number now before me, that geology had the devil for its author. A learned correspondent of the paper, who was, however, somewhat more charitable, thought that at least the _facts_ of the science might be exempted from a condemnation so sweeping; nay, that, well interpreted, they might be found decidedly opposed to at least the more mischievous deductions of the geologists; and in illustrating the point, we find him thus arguing, from certain appearances in the valley of the Nile, that the globe which we inhabit cannot possibly be more than six thousand years old.[42] "The valley of the Nile," says this writer, "is known to be covered with a bed of slime which the river has deposited in its periodical inundations, and which rests on a foundation of sand, like that of the adjacent desert. The French savans who accompanied Bonaparte in his Egyptian expedition made several experiments to ascertain the thickness and depth of this superincumbent bed. They dug about two hundred pits, and carefully measured the thickness in the transversal section of the valley, where the deposit had been free from obstacles, and had not been materially increased or lessened by local causes. They found the mean of all these measurements to be six and a half metres, or rather more than twenty feet. M. Gironde endeavored to determine the quantity of slime deposited in a century; and he found that the elevation of soil in that period was rather less than four inches and a half! Dividing the total thickness of the bed by the centenary elevation, he found the quotient 56.50; whence it followed that the inundations had commenced 5650 years before the year 1800, when the experiments were made,--a number which only differed 159 years from the Mosaic date. The difference is not very important, when it is considered that the most trifling error, whether in the measure of the entire superincumbent bed, or in the valuation of the quantity of slime deposited in a century, affects the final results. Notwithstanding this, the coincidence between the sacred historian and the computations of science is remarkable, and furnishes one proof more of the harmony existing between nature and revelation. An honest experimentalist was constrained to arrive at this conclusion at a period when the infidel school of our continental neighbors was in high feather. I am sorry to add, that the result of his own calculation had not that effect on the philosopher himself, or his free-thinking associates, which, for their own sakes, was desirable; but it is no less valuable to us on that account; for we know that an unwilling witness to the truth is worth a score of evidences already prejudiced in its favor."

Now, this is clear, distinct statement; and nothing can be more evident than that the theologian who makes it holds he is reasoning with conclusive effect in behalf of what may be termed the short chronology,--not in its legitimate connection with the recent introduction of the human species, but in its supposed bearing on the age of the earth. And in doing so he commits himself to the apparent positive fact, determined on what may be regarded as geologic data, that the river Nile has been flowing over its bed for about as many years as have elapsed, according to the Hebrew chronology adopted by Usher, since the creation of man, and no more. To the integrity of this inference he pledges himself, as an inference to which the infidel ought to have yielded, as conclusive in its bearing on the question of the earth's age, and as of singular value to the believer who sets himself to deal with the evidences of his faith. Now, without referring to the circumstance that the data on which the French savans under Napoleon founded have since been challenged by geologists, such as Lieutenant Newbold and Sir G. Wilkinson, who have carefully surveyed the rocks and soils of Egypt with the assistance of clearer light than existed at the commencement of the century, let us, for the argument's sake, hold the inference to be quite as good as this theologian regards it. And see, we urge upon him, that you yourself do not suffer it to drop should you find that it commits you to the other side of the argument. Be at least as fair and honest as you say the infidels ought to have been. The six and a half metres of silt and slime,--representative, let us hold, of from five to six thousand years,--rest, you say, on "a foundation of sand like that of the adjacent desert." But have you ascertained on what the sand rests? I know nothing of that, replies the theologian; I had not even thought of that. But the geologist has thought of it, we reply; and has spent much time under the hot sun in ascertaining the point. For nearly three hundred miles,--from the inner boundaries of the delta to within a few hours' journey of the cataracts,--the silt and sand rest on what is known as the "marine" or nummulitic limestone,--a formation of great extent, for it runs into the Nubian desert on the one hand, and into the Libyan desert on the other; and which, though it abounds in the animalcules of the European chalk, is held to belong, in at least its upper beds, which are charged with nummulites, to the earlier Eocene. Over this marine limestone there rests a newer formation, of later Tertiary age, which contains the casts of sea shells, and whole forests of dicotyledonous trees, converted into a flint-like chert; and over all repose the sands and gravels of the desert. Underneath the silt of the river, then, and the sand of the desert, lie these two formations of the Tertiary division. The lower, which is of great thickness, must have been of slow formation. It is composed almost exclusively, in many parts, of microscopic animals, and abounds in others in fossil shells,--nautili, ostreadæ, turritella, and nummulites, with corals, sponges, the remains of crustacea, and the teeth of fishes. And between the period of its deposition and that of the formation which rests upon it the surface of what is now Egypt must have been elevated over the surface of the sea, to be covered, in the course of ages, by great forests, which, ere the land assumed its present form and level, were submerged by another oscillation of the surface, and petrified amid beds of a siliceous sand at the bottom of the ocean. Nor is the underlying marine limestone by any means the oldest of the sedimentary rocks of Egypt. It rests on a sandstone of Permian or Triassic age; the sandstone rests, in turn, on the famous Breccia de Verde of Egypt; and the Breccia on a group of Azoic rocks, gneisses, quartzes, mica schists, and clay slates, that wrap round the granitic nucleus of Syene. The formations of Egypt constitute a well-determined part of that great series of systems which compose the upper portion of the earth's crust: its silt is by far the most inconsiderable of its deposits; and if five thousand six hundred and fifty years were exhausted in laying down layer after layer of the twenty feet which form _its_ average thickness, what enormous periods must we not demand in addition for the laying down of the forest formation, of the marine limestone formation, of the New Red Sandstone formation, of the Breccia de Verde formation, and, in short, for the some ten miles of fossiliferous rock of which those deposits form such definite, well-determined portions; besides the time necessary for the production of the enormously developed Azoic rocks which lie under all! The theologian, in this instance, instead of reasoning, as he himself supposed, in behalf of the short chronology, has been making out a very formidable case for the long one; and all that the geologist can have to urge upon him in the circumstances is simply that he should act as he holds the infidel ought to have done, and yield to the force of evidence. I may mention in the passing, that some of the most ancient buildings of Egypt are formed of the Tertiary marine limestones of the country; the stones of the pyramids are charged with nummulites, known to the Arabs as "Pharaoh's beans;" and these organisms stand out in high relief on the weathered portions of the Great Sphinx. Some of the oldest things in the world in their relation to human history,--erections, many of which had survived the memory of their founders even in the days of Herodotus,--are formed of materials so modern in their relation to the geologic epochs, that they had no existence as rock until after the Palæozoic and Secondary ages had gone by. Not only the Carboniferous sandstone of the High Church and Parliament House of Edinburgh, but even the Oolitic (that is, Portland stone) of Somerset House and St. Paul's, are of an antiquity incalculably vast compared with the stone out of which the oldest of the pyramids were fashioned.

NUMMULITES LÆVIGATA.

(_Pharaoh's Beans._)]

The second example which I shall adduce is one with which many of my auditors must be already familiar. The Falls of Niagara are gradually eating their way through an elevated tract of table-land, upwards towards Lake Erie, at the rate of about fifty yards in forty years; and it has been argued by Sir Charles Lyell, that as they are now seven miles distant from Queenston, where the elevation of the plateaux begins, they must have taken about ten thousand years to scoop out their present deep channel through that space.[43] Ten thousand years ago the Falls were, he infers, at Queenston; and the grounds on which he reasons are exactly those on which one would infer that a laborer who had cut a ditch two hundred yards long at the rate of ten yards per day, and was still at work without pause or intermission, had begun to cut it just twenty days previous. A reverend anti-geologist takes up Sir Charles;[44] and, after denouncing the calculation as "a stab at the Christian religion," seeing it involves the assertion that the "Falls were actually at Queenston four thousand years before the creation of the world according to Moses," he brings certain facts, adduced both by other writers and Sir Charles himself, to bear on the calculation, such as the fact that the deep trench through which the Niagara runs is much narrower in its lower than in its upper reaches, and that the river must have performed its work of excavation, when the breadth was less, at a greatly quicker rate than now. And thus the work of excavating the trench is brought fairly within six thousand years. Nor is the principle of the reasoning bad. In our illustration of the ditch excavated by the laborer we of course take it for granted that it is a ditch of the same depth and breadth throughout, and excavated in the same sort of soil; for if greatly narrower and shallower at one place than at another, or dug in a greatly softer mould, the rate of its excavation at different times might be very different indeed, and the general calculation widely erroneous, if based on the ratio of progress when it went on most slowly, taken as an average ratio for the whole. But the anti-geologist provokes only a smile when, in his triumph, he exultingly exclaims, "It is on grounds such as these that the most learned and voluminous among English geologists disputes the Mosaic history of the Creation and Deluge,--a strong proof that even men of argument on other subjects often reason in the most childish and ridiculous manner, and on grounds totally false, when they undertake to deny the truth of the Holy Scriptures." Now, it must be wholly unnecessary to remark here, that it is surely one thing to "undertake to deny the truth of the Holy Scriptures," and quite another and different thing to hold that the Niagara Falls may have been at Queenston ten thousand years ago; or further, that it seems not in the least wise to stake the truth of Revelation on any such issue. Let me request you, however, to observe, that in one important respect this writer resembles the former one. The former, ignorant of the various phenomena exhibited by the great deposits of Egypt, exhausted all his five thousand six hundred years of available time in accounting for the formation of one of the least of them,--the silt of the Nile; and the latter, though he bids down Sir Charles some four thousand four hundred years or so in the one item of scooping out the bed of the St. Lawrence, at least expends the remainder of the ten thousand,--his five thousand six hundred years,--in that work of excavation alone, and leaves himself no further sums to set off against the various geologic processes that may have preceded it.

In this case, as in the other, let us grant, for the argument's sake, all the facts. Let us admit that the trench through which the St. Lawrence now flows has been cut by the river in somewhat less than six thousand years. But through what, let us ask, has it been cut? There can exist no doubt on the subject: it has been cut through an ancient graveyard of the Upper Silurian system, charged with the peculiar fossils characteristic of what are known as the Clinton and Niagara groups, and common, many of them, to the Upper Silurian of our own country and of the European continent. _Leptæna depressa_ and _Pentamerus oblongus_, two of the most frequent shells of the deposit, occur also in equal abundance in the Dudley and Caradoc formations of England; its prevailing encrinite, _Ichthyocrinus lævis_, is scarce distinguishable from an encrinite which I have often picked up in the quarries of the "Wren's Nest" (_Ichthyocrinus pyriformis_); while its prevailing trilobite, _Phacops limulurus_, seems to be but a transatlantic variety of our well known _Asaphus (Phacops) caudatus_. Further, the sequence of the various formations both above and below the Niagara group, is shown with remarkable distinctness in that part of the world along the shores of the great lakes. They may be traced downward, on the one hand, along the Lower Silurian deposits, to the non-fossiliferous base on which the system rests, and upwards, on the other, through the Old Red Sandstone and the Carboniferous Limestone, to the workable Coal Measures. Both stratigraphically and palæontologically the place in the scale of the Niagara graveyard can be definitely determined; and a superficial deposit on the heights in its immediate neighborhood shows that the river did not begin its work of excavation among its long extinct shells, trilobites, and corals, until after not only the great Palæozoic, but also the Secondary and Tertiary divisions had been laid down, and the recent period ushered in. The superficial shells of the adjacent heights belong to the Pleistocene age, and show that in even that comparatively modern time the lower lands of Upper Canada were submerged beneath the level of the ocean, and that a series of deep seas, connected by broad sounds, occupied the place of the great lakes. Not until the last upheaval of the land was the river now known as the St. Lawrence called into existence, to begin its work of excavation; and ere that event took place, fully ten miles of fossiliferous rock had been deposited on the earth's surface, charged with the remains of many succeeding creations. The deposit through which the St. Lawrence is slowly mining its way is older than the river itself by the vast breadth of the four Tertiary periods, by that of all the Secondary ages,--Cretaceous, Oolitic, and Triassic,--by the periods, too, of the Permian system, of the Carboniferous system, of the Old Red system, and of the uppermost beds of the Upper Silurian system. But a simple illustration may better serve to show the true character of the conclusion urged here by the opponent of Sir Charles, than any such line of statement as that which I employ, however clear to the geologist. In the year 1817, Prince's Street, in Edinburgh, was opened up to the Calton Hill, and the Calton burying-ground cut through to the depth of many feet by the roadway. Let us suppose that when the excavation has been carried a hundred yards into the cemetery, a geologist, finding the laborers cutting on the average about a yard per day, simply intimates as his opinion that the laborers have been a hundred days at work. "No," replies a controversialist on the anti-geological side; "for the first fifty yards, so soft was the subsoil, and so shallow the covering of mould, that the laborers must have cut at the rate of two yards a day; it has been merely for the last fifty yards that they have been excavating at the present slow rate: they cannot have been more than seventy-five days at work. I marvel exceedingly at the absurdity of geological reasoners: _palpably the burying-ground of the Calton is only seventy-five days old._" Now, such, in no exaggerated, but, on the contrary, greatly modified form, is the argument that would limit the age of the earth to the period during which the St. Lawrence has been scooping out a channel for itself, from Queenston to Niagara, through an ancient Silurian burying-ground. Both arguments alike confound the age of the ancient burying-grounds with the date of the modern excavations opened up through them; but in order to render the argument of my illustration equally absurd with the other, it would be not only necessary to infer that the Calton cemetery was only seventy-five days old, but also that the rock on which it rested was no older.

But enough of follies such as these! I had marked a good many other passages of similar character in the writings of the recent anti-geologists, and would have little difficulty in filling a volume with such; but it would be a useless, though mayhap curious work, and is much better exhibited by specimen than as a whole. A little folly is amusing, but much of it fatigues. There is a time coming, and now not very distant, when the vagaries of the anti-geologists will be as obsolete as those of the geographers of Salamanca, or as those of the astronomers who upheld the orthodoxy of Ptolemy against Galileo and Newton; and when they will be regarded as a sort of curious fossils, very monstrous and bizarre, and altogether of an extinct type, but which had once not only life, but were formidable. It will then be seen by all what a noble vestibule the old geologic ages form to that human period in which moral responsibility first began upon earth, and a creature destined to immortality anticipated an eternal hereafter. There is always much of the mean and the little in the worlds which man creates for himself, and in the history which he gives them. Of all the abortions of the middle ages which have come down to us, I know not a more miserable one,--at once ludicrous and sad,--than that heavens and earth of Cosmas _Indicopleustes_, the monk, which I illustrated by diagrams in my last lecture (Figs. 114, 115). They are just such heavens and earth as a monk might have made, and made too at a sitting. The heavens, represented as a solid arch raised on tall walls, resemble, as a whole, the arch which figures in the middle of a freemason's apron, or, more homely still, the section of a wine cellar; while the earth lies beneath as a great plain or floor, with a huge hill in the distance, behind which the sun passes when it is night. And yet this scheme gave law to the world for more than six centuries, and lay like a nightmare on physical discovery, astronomic and geographical. The anti-geologists have been less mischievous, for they live in a more enlightened age; and we already see but the straggling remains of the body, and know that the time cannot be far distant when it will be as completely extinct as any of the old faunas. The great globe, ever revolving on itself, and journeying in space round the sun, in obedience to laws which it immortalized a Newton to discover and demonstrate, is an infinitely more sublime and noble object than the earth of Cosmas the monk, with its conical mountain and its crypt-like firmament; nor can I doubt that its history throughout the long geologic ages,--its strange story of successive creations, each placed in advance of that which had gone before, and its succeeding organisms, vegetable and animal, ranged according to their appearance in time, on principles which our profounder students of natural science have but of late determined,--will be found in an equal degree more worthy of its Divine Author than that which would huddle the whole into a few literal days, and convert the incalculably ancient universe which we inhabit into a hastily run-up erection of yesterday.

LECTURE ELEVENTH.

ON THE LESS KNOWN FOSSIL FLORAS OF SCOTLAND.[45]