So again with regard to cultivated vegetables and flowers. How different are the species of the red cabbage and the cauliflower; who would have expected them to be varieties of the wild brassica oleracea? Yet from that they have been derived by cultivation. They have, however, a tendency like animals to revert to the original type, or, in the gardener's phrase, to degenerate, which it requires the utmost care on his part to counteract. When left to a state of nature, they speedily lose their acquired forms, properties and character, and regain those of the original species.

If species be permanent—if no education or training can educe new kinds—if the higher classes of animals are not the results of meliorations of the lower—whence did they come? This question we are not bound to answer. It might be as reasonably asked, whence did the lower classes come? Geology, like other sciences, does not conduct us to the beginning, it only takes up creation at certain ulterior stages of development. The changes and construction of the globe may have been different in different parts; it has not been proved that geological revolutions have been either universal or contemporary. There may have been climates and regions adapted to the existence of the higher class of land animals, while contemporarily therewith other portions of the globe might be undergoing changes beneath the ocean. It is not improbable that the human species dwelt nearly stationary for ages on the old continents of Africa and Asia, while Europe and America were covered with water. Supposing these new continents formed, either by the gradual subsidence of the sea or the rising of its bed, successive inhabitants would follow in the order presented by existing organic remains. While covered by the sea, what now form Europe and America could only be peopled by marine animals; but as the land rose or the waters subsided into their ocean channels, and dry land appeared, reptiles and amphibiae might become the occupants; next, as the earth became drier and more salubrious, the new continent would be resorted to by terrestrial animals; in a still more advanced stage of purification and salubrity, man himself, as the lord of all the preceding classes of immigrants, would take possession, and as he still continues the living occupant it is premature to look for his petrifaction.

ORIGIN OF THE ANIMATED TRIBES.

Science has mastered many perplexities, but is almost powerless as ever in generation. All that lives, and still more all that moves, must have a pre-existing germ formed independently of the created being, but which is essential to its existence, and fixes the type of organization. The old adage—omne animal ab ovo—may be taken as generally true. But though every animal has its primordial egg or germ, all germs are not identical. In the beginning of life there are other organic elements besides the ovum. Partly on direct proof and partly on good analogy, it may be inferred that these differ in different species—that each in the first stages of existence is bound by a different and immutable mode of development—and, if so, there can be no embryotic identity. "By no change of conditions," says Dr. CLARKE, "can two ova of animals of the same species be developed into different animal species; neither by any provision of identical conditions can two ova of different species be developed into animals of the same kind." If these views be right, and we believe them to be so, there cannot be a transmutation of species under the influence of external circumstances.

Baffled in the effort either to create species or organically to change them, attempts have been made to approach nearer to the source of vitality, and explain the chemical, electric, or mechanical laws by which the vital principle is influenced. For this purpose various hypotheses have been put forth; one is the noted conjecture of Lord MONBODDO, that man is only an advanced development of the chimpanzee or ourang-outang. A second explanation is that given by LAMARCK, who surmised, and with much ingenuity attempted to prove, that one being advanced in the course of generations into another, in consequence merely of the experience of wants calling for the exercise of faculties in a particular direction, by which exercise new developments of organs took place, ending in variations sufficient to constitute new species. In this way the swiftness of the antelope, the claws and teeth of the lion, the trunk of the elephant, the long neck of the giraffe have been produced, it is supposed, by a certain plastic character in the construction of animals, operated upon for a long course of ages by the attempts which these animals make to attain objects which their previous organization did not place within their reach. This is what is meant by the hypothesis of progressive tendencies, and which requires for its validity not only the assumption of a mere capacity for change, but of active principles conducive to improvement and the attainment of higher powers and faculties. More recently ST. HILAIRE has published a paper in which he speaks of the immutability of species as a conviction that is on the decline, and that the age of CUVIER is on the close. Carried away by what Professor PHILLIPS has called a poetical conjecture that cannot be proved, this writer propounded the speculation that the present crocodiles are really the offspring of crocodilian reptiles, the difference being merely the effect of physical conditions, especially operating during long geological periods upon one original race. The human species, he contends, are but an advanced development of the higher order of the monkey tribe, and that the negroes are degenerating towards that type again. According to him the sivatherium—a fossil animal that had been found in the Himalaya mountains—was the primeval type that time had fined down into the giraffe from long-continued feeding on the branches of trees. Dr. FALCONER and Capt. CAUTLEY, however, have shown that anatomical proofs are all against this inference, but if any doubt remained it must yield to the fact, that among the fauna of the Sewalik hills the sivatherium and the giraffe were contemporaries.

The author of the Vestiges of Creation has put forth an hypothesis founded on the preceding conjectures, but more compact and conclusive. He is, as we have seen, in favour of the progressive change of species, adopting the notion that men once had tails, and that the rudiments of this condal appendage are found in an undeveloped state in the os coccygis (p. 199.) His leading idea of the progress of organic life is that the "simplest and most primitive type under a law to which that of like production is subordinate, gave birth to the type next above it; that this again produced the next higher, and so on to the very highest, the stages of advance being in all cases very small—namely, from one species only to another; so that the phenomenon has always been of a modest and simple character." (p. 231.) The arguments by which the author endeavours to prove his hypothesis may be thus compressed.

According to him foetal development is a science, illustrated by HUNTER'S great collection of the Royal College of Surgeons, and established by the conclusions of ST. HILAIRE and TIEDMANN. Its primary positions are—1. That the embryos of all animals are not distinguishably different from each other; and, 2. That those of all animals pass through a series of phases of development, each of which is the type or analogue of the permanent configuration of tribes inferior to it in the scale. Higher the order of animals, the more numerous its stages of progress. Man himself is not exempt from this law. His first foetal form is that which is permanent in the animalcule; it next passes through ulterior stages, resembling successively a fish, a reptile, a bird, and the lower mammalia before it attains its specific maturity. The period of gestation determines the species; protract it, and the species is advanced to a higher class. This might be done by the force of certain conditions operating upon the system of the mother. Give good conditions and the young she produces will improve in development; give bad conditions and it will recede. Cases of monstrous birth in the human species are appealed to, in which the most important organs are left imperfectly developed; the heart, for instance, having sometimes advanced no further than the three-chambered or reptile form, while there are instances of that organ being left in the two-chambered or fish-like form. These defects arise from a failure of the power of development in the mother, occasioned by misery or bad health, and they are but the converse of those conditions that carry on species to species. The differences of sexes is the result of foetal progress only one degree less marked than that of a change of species. Sex is fully ascertained to be a matter of development. All beings are at one stage of the embryotic progress female. A certain number of them are afterwards advanced to the more powerful sex. For proof of this, the economy of bees is cited; when they wish to raise a queen-bee, or true female, they prepare for the larva a more commodious cell, and feed it with delicate food. But we shall here stop to remark on the author's argument up to this point.

It is manifest, according to his hypothesis, that neither sex nor species depend on the ancestral germ, but simply on physical conditions and mechanical development. But eminent physiologists deny that the facts are such as he has stated; they deny, as we have stated in a former section, that the foetal progress is such as the Vestiges represent them to be; they deny that the human embryo, for example, exhibits in successive stages the form of fish, lizard, bird, beast: on the contrary, they contend that it is only in the earliest period of the organic germ, when the manifestations are almost too obscure for microscopic sense, that any resemblance exists; that immediately the organic germ becomes sensible to observation, sex and species are found to be fixed. Take, for example, the vertebrata; in these, by some mysterious bond of union, the organic globules are seen to arrange themselves into two nearly parallel rows. We may then say that the keel of the animal is laid down, and in it we have the first rudiments of a backbone and a continuous spinal chord. But during the progress and completion of this first organic process no changes have been observed assimilating the nascent embryo to any of the inferior animals. The next series of changes in the germinal membrane are of two kinds—in one the nervous system, the organs of motion, the intestinal canal, the heart and blood-vessels are manifested; the other set of changes, which are subsequent, produce the perfection of the animal and determine its sex. All these manifestations result from germinal appendages that cannot be severed or changed without ruin to the embryo, and the conditions essential to life as the structure advances are due temperature, due nutriment of the nervous organs, and due access to the atmospheric air. Without, therefore, pursuing further this part of the inquiry, we shall remark that the question at issue between the Vestiges and its opponents is one of facts—of conflicting evidence—to be tried by the jury of the public, or rather by those who, from science or professional pursuits, are competent to form an authoritative opinion. Our own conclusion is, that in face of the testimony adduced against it, the author's hypothesis is not yet established.

For proof that species do change, and that even new species have been actually and recently produced, the author has adduced statements certainly as questionable and little satisfactory as his representation of foetal phenomena. We can only briefly enumerate them. First we are told that oats sown at midsummer, if kept cropped down, so as to be prevented shooting into ear, and then allowed to remain in the ground over winter, will spring up next year in the form of rye (p. 226). This need not be disputed about; the experiment can be easily tried; but if rye were the result, it would be no conclusive proof of a translation of species. Perhaps the oat-plants perished under the operation of repeated cuttings, and the rye seed was dormant in the earth and sprung up in its place; or, if not so, oats and rye may not be different species, only varieties of the same species. They are scarcely more dissimilar than the primrose, the cowslip, and the oxlip, which have all been raised from the seed of the same plant, and are now regarded by botanists as varieties instead of species.

When lime is laid on waste ground we are told that white clover will spring up spontaneously, and in situations where no clover-seed could have been left dormant in the soil (p. 182). But how is this to be proved? It is certain that seeds will remain dormant in the soil for centuries, and then spring up the first year the soil is turned up by the plough. Some seeds have retained their vitality for thousands of years in the old tombs of Egypt; they have been repeatedly brought to England, sown, and produced good wheat.

We are next told that wild pigs never have the measles, they are produced by a hyatid and the result of domestication; that a tinea is found in dressed wool that does not exist in its unwashed state; that a certain insect disdains all food but chocolate, and that the larva of oinopota cellaris only lives in wine and beer. All these are articles manufactured by man, and are adduced as proofs of animal life, independent of any primordial egg. The entoza are dwelt upon; they are creatures living in the interior of other animals, of which the tape-worm that infests the human body is a melancholy instance. In these illustrations we think the author has some show of reason, for we feel convinced that there is such a thing as spontaneous generation from the inorganic substance, wisely provided for clearing the earth of noxious effluvia and putrid matter, and converting them into new elements conducive to health and life. We believe in this source of vitality from its wisdom and necessity, its necessity and wisdom, in our estimate, being strong presumptive proofs of its existence in harmony with the general forecast and economy of nature. Of the self-originating spring of life, some of the examples adduced by the author are proofs, and of which we have familiar illustrations in cheese-mites, maggots in carrion, and the green fly that breeds so profusely in weak and decaying vegetation; in all which by some inscrutable law the organic germ, without an antecedent, appears to evolve from the dead or putrifying mass for its riddance and transmutation.

Conceding, however, thus far to the author, we are not prepared to admit that the creative powers of Messrs. CROSSE and WEEKES has been established. These gentlemen are said (p. 190) to have introduced a stranger in the animal kingdom, a species of acarus or mite amidst a solution of silica submitted to the electric current. The insects produced by the action of a galvanic battery continued for eleven months are represented as minute and semi-transparent, and furnished with long bristles. One of the creatures resulting from this elaborate term of gestation was observed in the very act of emerging, in its first-born nudity, and sought concealment in a corner of the apparatus. Some of them were observed to go back into the parent fluid and occasionally they devoured each other; and soon after they were called to life, they were disposed to multiply their species in the common way! So much for the experiment; against its verity it is alleged, first, that the Acarus Crossii are not a new species, or if new, that neither Mr. CROSSE nor Mr. WEEKES, who repeated Mr. CROSSE'S experiment, produced them, but only aided by the voltaic battery the development of the insects from their eggs. Such a mode of generation is contrary to all human experience, and can only be believed in on the strongest corroborative proof.

Neither by chemistry nor galvanism can man, we apprehend, be more than instrumental and co-operative, not originally and independently creative. In almost every form of life, whether animal or vegetable, art can multiply varieties,—can train, direct—but cannot form new species. This is the mockery of science. With all its invention and resource, it cannot produce organic originals. It can rear a crab-apple into a golden-pippin, or wild sea-weed into a luxuriant cabbage; it can raise infinite varieties of roses, tulips, and pansies, but can create no new plant, fruit, or flower. Man can make a steam-engine, or a watch, but he cannot make a fly, a midge, or blade of grass. He is an ingenious compiler, but not a creator; and his powers of manufacture and conversion are restricted within narrow boundaries. He cannot wander far in the indulgence of his fancies without being recalled, and compelled to return to the first models set by the Great Architect. The further he strays from primitive types in the effort to improve, by crossing, cutting, and grafting, and proportionably less becomes the procreative force. Hybrids are notoriously sterile. Garden fruit is not permanent, and requires to be renewed from seed. The law seems universal in plants and animals, that the vital energy or germ is less forcible and prolific in the pampered and artificial, than in the natural and wild races.

HYPOTHESIS OF THE VITAL PRINCIPLE.

It is ascertained that the basis of all vegetable and animal substances consists in nucleated cells—that is, cells having granules within them. Nutriment is converted into these before being assimilated by the system. It has likewise been noted that the globules of the blood are reproduced by the expansion of contained granules; "they are, in short," says the Vestiges, "distinct organisms multiplied by the same fissiporous generation. So that all animated nature may be said to be based on this mode of origin; the fundamental form of organic being is a globule, having a new globule forming within itself, by which it is in time discharged, and which is again followed by another and another, in endless succession. It is of course obvious, that if these globules could be produced by any process from inorganic elements, we should be entitled to say that the fact of a transit from the inorganic to the organic had been witnessed." (p. 176.) "Globules," the author continues, "can be produced in albumen by electricity. If, therefore, these globules be identical with the cells which are now held to be reproductive, it might be said that the production of albumen by artificial means is the only step in the process wanting. This has not yet been effected." (p. 177.)

These are the advances towards generation by chemistry and electricity. The process, however, according to this detail, appears still far from complete. Albumen is to be produced "by artificial means;" and even then we should doubt entire success. Chemists have long commanded the power to resolve the seeds of animal and vegetable life into their elements; they have analysed them, and shown the exact weight and proportion of each constituent; but they never could put them together again, or, by any similar compound produce the primordial egg or organic germ, from which a living being would arise. A connecting link—a vital spark, or animating soul—is always wanting to complete the existence of the Prometheus of the laboratory. Mark, too, the "if," and the "might," in this most lame and impotent hypothesis:—"If, therefore, these globules be identical with the cells which are held to be reproductive, it might be said," &c. Globules can be easily produced; the passage of the electric fluid through water will produce aerial globules in rapid and expansive movement; boys can produce them with suds and a tobacco-pipe in rapid succession, each, for aught we know, containing a "granule" that multiplies by "fissiporous generation." But these are not organic globules, and the author has committed the great perversion in language or logic of confounding the organic globule of life with the inorganic globule of a chemist. His theory is more fanciful than that of LAMARCK, from whom it is derived, and who had, at least, his petit corps gelatineux to begin with—to commence weaving organic tissue from—but our author's organic globule is not so substantive a conception; and as he does not pretend to be able to produce even this by physical means, he has not made a single step in generation.

This we consider the least satisfactory and successful portion of the author's work. It assigns no intelligible cause for the origin of life—it only begs the question, by the substitution of one mystery for another. His law of DEVELOPMENT is of the same description,—without sense or significancy, unsupported by applicable facts, and is not so comprehensible a cause of vital changes as LAMARCK'S assigned progressive tendencies of animals to master the appliances essential to their wants.

ANIMAL AFFINITIES, INSTINCT, AND REASON.

The scheme of the Vestiges is uniformly and consistently worked out; all phenomena are resolved into gravitation and development—the first as the law of inorganic, the latter of organic matter. By the last, however, no new principle is revealed, only a new phrase devised, by the amplified application of which the author's entire system may be said to be begged rather than proved; since development is used in a sense implying an indefinite power of animate and inanimate creation; so that at last we make no new discovery, only grasp a new nomenclature.

But the author is always interesting, either by the novel display of facts or the ingenious concatenation of plausibilities. Consistently with his fundamental notion of animal transmutation, he tries to prove a family likeness or affinity from the humblest to the highest species. In this way he seeks to explain the marvel with respect to the huge bulk of many of the tertiary mammalia—the mammoth, mastadon, and megatherium; they were in immediate descent from the cetacea, or whale and dolphin tribe. (p. 267.) Again, human reason is considered no exclusive gift; it exists subordinately in the instinct of brutes, and is alleged to be nothing more than a mode of operation peculiar to the faculties in a humble state of endowment, or early stage of development. CUVIER and NEWTON are only intellectual expansions of a clown; and this notion is extended to moral obliquities, the wicked man being characterised as one "whose highest moral feelings are rudimental." (p. 358.) From a like principle the writer concurs with Dr. PRICHARD, that mankind may have had a common origin; that there exists no diversities of colour or osseous structure not referable to climatable or other plastic agencies influencing the development of the different races, commencing with the lowest, or Negro tribe, and ascending upward through the intermediate aboriginal American, Mongolian, and Malay, to the last and most perfect stage of the Caucasian type.

Into the verity of these conclusions we are not called upon to enter; they have been long in controversy, involve a great array of facts and inductive inferences, and we have only referred to them as corollaries or collaterals of the author's hypothetical fabric.

RELIGIOUS AND MORAL TENDENCIES.

We have no charge of impiety to bring against the Vestiges. Final causes, or to express ourselves more intelligibly, a purpose in creation, is nowhere impugned. The Deity is not degraded by impersonification in the form and frailties of mortality, but everywhere the author reverently bows to that august and unsearchable name, acknowledges the grand and benevolent design—the admirable adaptation of every created thing to its end and place, and finally concludes in a strain of grateful and exulting Optimism, that we confess we have not fully arrived at—namely, that everything "is very good." (p. 387.) From this impression we have only one constructive drawback to notice in the author's mechanical but fanciful constitution of the universe, by which a special Providence in the government of the world seems to be dispensed with, and the Almighty is placed in the sinecure position of the Grand Elector of the Abbe SIEYES, with nothing to do. But no divine attribute is abscinded—no glory of Omnipotence dimmed—whether it pleases him to rule by direct interpositions of power, or his own pre-ordained eternal laws.

Still less can we detect in the speculative inquiries of the Vestiges conclusions hostile to the moral and social interests of the community. Men are formed to be what they are; vice and crime are the fruits of malorganization, and malorganization is the result of the unfavourable conditions in which the subject of it has been placed, prior or subsequent to birth. These are the author's leading metaphysical inculcations. They impose grave duties upon individuals and upon society, rightly understood and applied, but we cannot discern a hurtful tendency in them. They are useful knowledge, knowledge that it would be well for parents and rulers to master, by showing the importance of education, of favourable circumstances, and of good moral and physical training, for rearing happy, well-ordered, and virtuous members of the community. Supreme in intelligence, man, we firmly believe, is not less supremely blessed in the means of felicity, provided his real nature and position in the scheme of creation were understood, recognised, and carried out. He has his place, his office, and his destiny; he is no enigma but as an individual; "in the mass," as the author emphatically remarks, "he is a mathematical problem." His conduct is uniform and consistent; the result of known and ascertainable causes—causes calculable and predicable in their consequences, as the statistics of crime have incontestibly established.

GENERAL CONCLUSIONS ON THE VESTIGES.

The heavens are wonderful, and the earth is wonderful, and man, who, by force of intellect, has sought to comprehend the immensity of one and unravel the formation of the other, is hardly less wonderful than either. Still the great mystery remains unriddled; our researches have brought us no nearer the beginning, and the first cause of all continues unapproachable and undefinable as ever. Instead of explaining physical creation, we begin with it; we take the existence of matter for granted, and its attributes for granted, and forthwith begin to fabricate a universe, without first ascertaining whence was matter, or whence the laws by which it is impressed, and has been governed in its evolutions.

Nature's greatest phenomena are the celestial spaces and the bodies that fill them; our own planet and its living occupants. Upon each of these, their commencement and subsequent vicissitudes, the Vestiges of Creation have propounded an hypothesis, but one mystery is only sought to be explained by another still more mysterious. For the fiat of a Creator chemical affinities and mechanical laws have been substituted, but aided by these the author has failed to produce a world such as we find it. Hence we are again driven upon the old tradition, the old sacred authority, that the world was created out of nothing; and this is as easy to comprehend as the solution of the Vestiges, that it sprang from that which is certainly next to nothing—a heated fog or universal fire-mist.

When the author deals with the facts of science he interests and instructs, but when he speculates he only amuses or perplexes, without advancing knowledge. His terse and luminous description of the astral firmament deeply impresses with the might and the magnitude of the vast design; but when he attempts to account for the elimination of suns and worlds, their formation and arrangement, we are struck by the puerile folly of his conjectural presumptions.

Descending from this august and glittering canopy to our own planet, we are not less astonished by the exhibition of the extraordinary revolutions it has undergone. Geology is the true historian of the earth. Conducted by the lights it affords, we see an eternity of ages has rolled before us; we discover a series of worlds rising through the depths of ocean from the central sphere of heat, amidst boiling floods and volcanic fires, each new platform of existence, that countless periods of time had been requisite to form, peopled with its own congenial forms of organic life, mostly commencing with the simpler, and ascending by almost imperceptible gradations to the higher and more complex structures of being. We are struck by the correspondence, by the pari passu development and formation of the earth's crust and organic existences, and we are apt hastily to conclude that a relation has subsisted between them, that contemporary changes have been cause and effect, and that the improvement of the earth produced the correlative improvement in animals and plants.

This forms the author's second questionable hypothesis; it is plausible, but false—repugnant to fact and correct observation. We have no credible evidence that species have changed, or are changeable by the utmost efforts of art or favouring conditions; all we can effect is to improve them within definite limits, but not alter their characteristic types; and we have certain proof that neither man nor the animal nearly next to him in organization, has changed either in habits, disposition, form, or osseus structure during the last 3,000 years. Resemblance is no proof of identity; and hence, though species run into each other by almost inappreciable shades of difference, it is no proof that they are derivative, or other than isolated and self-dependent creations. That they are such, and shall continue such, seems a fixed canon of Nature, who, apparently, has prescribed to each its circle of amendment and range, that like shall beget like—that nought organic shall exist without ancestral germ—and that the variety of species which constitutes the beauty and order of nature shall by no chance, contrivance, or mingling of races, be confounded.

Geological facts are in favour of this conclusion. They attest the appearance of new species, not their improvement. In each species a gradation of improvement, approximating from a lower to the next higher organism, is not perceptible; but each seems to have been made perfect at first, and most suited to the co-existent state of the earth. The earliest reptiles were not reptiles of inferior structure; nor the earliest fishes, birds, or beasts. They were adapted, as we now find them, to their precise sphere of existence, without progressive aptitude, preparatory to a higher and translated condition of being. Geology rather points to the extinction and degeneracy of species than their improvement; and the fossils of the old red sandstone, and of the carboniferous formation, attest a loftier and more magnificent creation of both marine and land products than any now subsisting.

For these and other reasons before adduced, we dismiss the hypothesis of animal transmutation as unproved and untenable. It pleases and satisfies superficial views, but confronted with the facts of nature, it vanishes like a baseless vision. Man is sui generis, sole and exclusive in organization, without pre-existing type or affinity to other species; and his alleged recent metamorphosis from a monkey, and his first and far more distant one from a snail or a tadpole, are paradoxes only worthy of idle debating clubs.

Having attempted to unfold the progression of species by his law of development, the author next essays to explain the commencement of the vital principle itself. But here, too, he must have a beginning, and his "organic globule" answers a similar purpose, in deducing the mystery of life, as his nuclei in the "nebular hypothesis." In both the perplexity and real difficulty is not solved or mastered, but evaded. But we have already remarked on the point, and shall only observe that when the author can elicit thought from inorganic matter, either by chemistry or galvanism, we shall think he has made a step in creation. Until then he does not advance, only deceives himself and readers by verbal subtleties and baseless suppositions.

Apart from its hypotheses, the Vestiges form a valuable and interesting work. It is the most complete, elaborate, and—with all its faults of detail, logic, and inference—the most scientific expositor of universal nature yet offered to the world. But its hypotheses are unwarranted, not inductively derived, and can have no hold on men of science, supported as they mostly are by fanciful analogies, facts misunderstood or misstated, and illustrations selected without discrimination or applicability. Theories do sometimes conduce to the discovery of truth, but are often obstructive; occupy the mind, like theological controversy, without advancing science; and are viewed with the same aversion by the philosopher that the political abstractions tendered to the multitude by the demagogue are viewed by the patriotic legislator.

The work, however, will live, and deserves to live. The temple of nature has been looked into, not profoundly, perhaps, nor always successfully; but in a fearless spirit, and with a highly-accomplished mind. Had the divine COSMOS been more fully dwelt upon and depicted—had the harmony, beauty, and beneficence of creation been more fully and exclusively displayed—we should have been more gratified; but we are thankful, in the main, for what we have received. An impulse has been given to popular inquiry, and a vast field for discussion opened, from which we can prospectively discern neither less love for man, nor reverence for God.

Who the author is we have no certain knowledge. It is not, we suspect, Lord KING, nor Lord THURLOW, nor Lady BYRON; but it may be the author of the Essay on the Formation of Opinions, and of the Principle of Representation. Mr. BAILEY, of Sheffield, though little known, possesses the fine reasoning powers, intellectual grasp, independence of research, abstract analysis, and attic style, that would qualify him to produce the Vestiges of Creation, though we never heard that he is a great natural philosopher. But, as just hinted, deep science is not evinced by the Vestiges, only an able, systematic, and tasteful arrangement of its distant and recent advances.



"EXPLANATIONS:"

A SEQUEL TO THE

"VESTIGES OF THE NATURAL HISTORY OF CREATION."

(From the ATLAS of December 20, 1845.)

So many strong objections had been arrayed against the Vestiges of Creation, that the author was called upon to elucidate and reinforce his argument, or abandon the ground he had taken up. The more candid and equitable of his judges—those who were disposed to try him upon the merits, and independently test the claims of his inquiry, as in fairness it ought to be, as strictly a scientific speculation, regardless of any constructive bearings it might have on current opinions or prejudices—could not arrive at any more favourable conclusion than that he had failed to establish his hypotheses. Indeed this was the only verdict that could be safely delivered in. The impugners of the work were in the same helpless predicament as its author, who had, however, more venturously presumed to unravel unsearchable mysteries, concerning which, in the existing state of science, men can only conjecture, wonder, and adore, utterly unable to affirm or deny aught respecting them. What, for instance, with the remotest semblance of certainty, can be predicated of the stellar orbs? Is it not idle almost to speculate on the impenetrable secret of their origin when their very existence is undefinable—when their end, their glittering discs, and all but immeasurable distances are wholly unapproachable? Nor hardly less beyond our grasp is the commencement of organic existences. We do pride ourselves on recent advances to the sources of entity; we tear up the dead, we torture the living, and sedulously chronicle every beat of the heart and vibration of the brain to slake an insatiable curiosity, yet how unsatisfactory our reach towards the hidden springs of life—how limited our attainments, when the creation of a single blade of grass, the humblest worm, a poor beetle, or gadfly, would baffle the utmost structural skill of the greatest philosopher! Into the fathomless depths of our own globe we have also essayed to penetrate. Poor beings! of three score and ten, whose utmost historical span extends only to some thousands of years, have sought to trammel up the terrene vicissitudes of millions of ages anterior to their own existence! Does not this savour of a vain research, or of a laudable thirst for knowledge?

Over all these dark and solemn inscrutabilities, however, the Vestiges undertook to throw a glare of light, to reveal their beginning, progression, order, relations, and law of development. Although daring in aim, the attempt was not to be wholly deprecated. While religious freedom had been secured, philosophy had become timid, official, and timeserving; retentive as FONTENELLE of the truths within its grasp, and fearful to give utterance to aught that might disturb the stillness of the temple, the lecture-room, or fashionable auditory. Modern teachers had been used so long to the Baconian go-cart, that they had become as apprehensive of losing the inductive clue as the PALINURUSES of old of the sight of the directing shore. But the time had arrived when it seemed expedient to relax the strictness of the investigative rule, and afford scope for a more systematic, if not speculative research. Science had made great acquisitions, and it seemed desirable, if only for experiment sake, to see what kind of FRANKENSTEIN would result from the architectural union of her scattered limbs. This formed the scope of the Vestiges of Creation; novelties were not propounded, only a portentous skeleton raised from the truths physical astronomy, geology, chemistry, physiology, and natural history had established. Does the author recoil from his work? No; these Explanations attest that he is steadfast in the worship of the idol of his brain. He retracts nothing, he re-asserts, elucidates, and often dexterously turns the weapons of the most formidable and orthodox of his adversaries against them, by showing from their writings that they had, in detail at least, acquiesced in the truths that they now, in a generalised form, seek to controvert and repudiate. So much adroitness and pertinacity in the author can hardly fail to provoke resistance, if not asperity, despite of the imperturbable temper in which he maintains the combat. The learned have been disturbed in their daily routine, by the discharge from an unknown hand, of a massive pyrites, that has diffused as much consternation among the herd of modish elocutionists, college tutors, and chimpanzee professors, as Jove's ligneous projectile among the lieges of the standing pool. For this commotion we have, on a former occasion, conceded that there existed valid reasons, and we hasten to see the way in which they have been met in the rejoinder before us; contenting ourselves, as we needs must, by briefly noticing some of the salient points of the controversy.

First of the Nebular Hypothesis. The chief objection to this theory is, that the existence of nebulous matter in the heavens is disproved by the discoveries made by the telescope of the Earl of ROSSE. By the reach of this wondrous tube, masses of light, rendered apparently nebulous by their vast distance, have been resolved into clusters of stars, and thence the assumption seemed unwarrantable that any luminous matter, different from the solid bodies composing planetary systems existed in the heavenly spaces. But to this the author replies, that there are two classes of nebulae—one resolvable into constellations—another comparatively near, that remains unaffected by telescopic power, and that until this last description can be separated, the nebular hypothesis is not disproved. It is thus brought to an issue of facts, both as to the existence of nebulae of this latter kind, and the optical power to resolve them into distinct stars.

But the author can hardly claim this negative success in grappling with a second objection—namely, his assumed origin of rotatory motion. According to him, a confluence of atoms round a spherical centre of attraction, would cause the agglomerated mass to revolve upon its axis in the manner of our earth. This was denied by everybody the least acquainted with the laws of motion; and thus did one of his imaginary solutions of a great phenomenon of the universe fall dead to the ground. This he now seems to concede, but in a sentence unintelligible to us, in which an undoubted physical law is spoken of as only an abstract truth (p. 20). He obviously still clings to his first mistaken inference, and calls to his aid Professor NICHOL, whom he has also pressed into his service to help him over the last-mentioned difficulty by the Professor's affirmation of a diversity of nebulous clusters. But the Professor does not commit himself to the extent of the author; his aqueous whirlpool is cited from HERSCHEL, only in illustration, and correctly said to be produced by the unequal force of convergence of a fluid to a common centre. But the author's nuclei, disposed in his notable "fire-mist," did not act with unequal force on the ambient vapour, and whose central convergence in consequence, would not produce rotation or motion of any kind. This was the real matter in question, the author was taken up on his own premises, and the results he assumed to follow from them proved to be inconsistent with the unquestionable laws of gravitating matter.

He has gone over the geological portion of his subject with much care, but if competent, it would be impossible within our narrow limits to accompany him; nor could the discussion be made either interesting or intelligible except to the scientific, who have devoted attention to an extremely curious, but still obscure and unsettled field of investigation. He has elaborately cleared up many points, and successfully, we think, answered some weighty objections, but we are not yet converts to his theory of organic development. One passage we shall extract; after adverting to the facts established by powerful evidence, that during the long term of the earth's existence, strata of various thickness were deposited in seas composed of matter worn away from the previous rocks; that these strata by volcanic agency were raised into continents, or projected into mountain chains, and that sea and land have been constantly interchanging conditions. He continues:—

"The remains and traces of plants and animals found in the succession of strata show that, while these operations were going on, the earth gradually became the theatre of organic being, simple forms appearing first, and more complicated afterwards. A time when there was no life is first seen. We then see life begin, and go on; but whole ages elapsed before man came to crown the work of nature. This is a wonderful revelation to have come upon the men of our time, and one which the philosophers of the days of Newton could never have expected to be vouchsafed. The great fact established by it is, that the organic creation, as we now see it, was not placed upon the earth at once; it observed a PROGRESS. Now we can imagine the Deity calling a young plant or animal into existence instantaneously; but we see that he does not usually do so. The young plant and also the young animal go through a series of conditions, advancing them from a mere germ to the fully developed repetition of the respective parental forms. So, also, we can imagine Divine power evoking a whole creation into being by one word; but we find that such had not been his mode of working in that instance, for geology fully proves that organic creation passed through a series of stages before the highest vegetable and animal forms appeared. Here we have the first hint of organic creation having arisen in the manner of natural order. The analogy does not prove identity of causes, but it surely points very broadly to natural order or law having been the mode of procedure in both instances."

To the allusion in the last sentence there can be no demur; that there is "natural order or law" in creation who will contest? But it is the author's law and the author's order that are in dispute—his transmutation of species, the higher classes emerging from and partly annihilating the lower, under meliorated conditions of being. That the simpler form of organic life should first appear; that remains of invertebrated animals should be first found; then, with these, fish, being the lowest of the vertebrated; next, reptiles and birds, which occupy higher grades; and finally, along with the rest, mammifers, the highest of all—all this appears natural enough. How could it be otherwise? When the earth was a slimy bed, what but the lowest forms of life—the mollusca, and other soft animals, without bony structure—could possibly live in or occupy it? During the carboniferous era, when the earth was enveloped in an atmosphere of hydrogen, vegetation might thrive; but man, and animals like him, dependent on vital air, could not exist; nor are remains of them found in this epoch of the globe's vicissitudes. All this is comprehensible. But the perplexing inquiry is, whence did the successive grades of animals emerge? That they could not contemporaneously exist; when the whole earth was a shoreless sea, and that animals could not live is certain; but were they created in succession by the Divine fiat, or did they emerge, as our author supposes and elaborately tries to prove, from the humblest primitive forms, by an inscrutable law of progression—evidenced, he contends, by geological facts—though by some his facts are disputed—and certainly not confirmed by any animal changes observable within the limits of human experience?

There is another alternative offers, which would dispense both with the author's hypothesis and the need of successive organic creations by a special Providence. Is it a geological fact, since life began, that the earth has simultaneously undergone throughout its entire surface the revolutions assigned to it? May it not always, from that period, have consisted, as it now does, of water and dry land, alternately changing their sites, but always apart, and allowing of the contemporary existence on some portion of its surface of all the varieties of tribes ever found upon it? The fossiliferous rocks that formed the primeval sea-beds could only be deposited by the abrasion from the anterior and higher rocks. It has always appeared to us that this conjecture is worthy of consideration, and, if found tenable, would reconcile many perplexities.

Upon subjects so obscure, and to which the human intellect has been only recently directed, it is not surprising that men of science have not arrived at uniformity of conclusion. Unable to reconcile phenomena with positive knowledge, there are names of no mean repute who would reserve certain domains of creation as the fields of special interventions. To this class Dr. WHEWELL appears to belong, who assumes that "events not included in the course of nature have formerly taken place." In the same way Professor SEDGWICK, to account for the appearance of certain animals, says, "They were not called into being by any law of nature, but by a power above nature." He adds, "they were created by the hand of GOD, and adapted to the conditions of the period." To this the author of the Vestiges assents, with the explanation (p. 134) that their existence was not the result of a "special exertion of power to meet special conditions," but of an antecedent and primitive law of development suited to the new exigencies, and emanating from the Creator. This, he contends, does not lower our estimate of the Divine character; and, in proof, cites Dr. DODDRIDGE, who cannot be suspected of irreverence. "When we assert," says the pious and amiable author, "a perpetual Divine agency, we readily acknowledge that matters are so contrived as not to need a Divine interposition in a different manner from that in which it had been constantly exerted. And it must be evident that an unremitting energy, displayed in such circumstances, greatly exalts our idea of God, instead of depressing it; and, therefore, by the way, is so much more likely to be true." Against constructive inferences it is urged, in the Explanations—

"As to results which may flow from any particular view which reason may show as the best supported, I must firmly protest against any assumed title in an opponent to pronounce what these are. The first object is to ascertain truth. No truth can be derogatory to the presumed fountain of all truth. The derogation must lie in the erroneous construction which a weak human creature puts upon the truth. And practically it is the true infidel state of mind which prompts apprehension regarding any fact of nature, or any conclusion of sound argument."

The writer then quotes Sir JOHN HERSCHELL as having some years ago announced views strictly conformable to those subsequently taken of organic creation in the Vestiges:—

"'For my part,' says Sir John, 'I cannot but think it an inadequate conception of the Creator, to assume it as granted that his combinations are exhausted upon any one of the theatres of their former exercise, though, in this, as in all his other works, we are led, by all analogy, to suppose that he operates through a series of intermediate causes, and that, in consequence, the origination of fresh species, could it ever come under our cognizance, would be found to be a natural, in contradistinction to a miraculous process,—although we perceive no indications of any process actually in progress which is likely to issue in such a result. In his address to the British Association at Cambridge, (1845), he said with respect to the author's hypothesis of the first step of organic creation—'The transition from an inanimate crystal to a globule capable of such endless organic and intellectual development, is as great a step—as unexplained a one—as unintelligible to us—and in any sense of the word as miraculous, as the immediate creation and introduction upon earth, of every species and every individual would be!'"

The Rev. Dr. PYE SMITH is next adduced:—

"'Our most deeply investigated views of the Divine Government,' says he, 'lead to the conviction that it is exercised in the way of order, or what we usually call law. God reigns according to immutable principles, that is by law, in every part of his kingdom—the mechanical, the intellectual, and the moral; and it appears to be most clearly a position arising out of that fact, that a comprehensive germ which shall necessarily evolve all future developments, down to the minutest atomic movements, is a more suitable attribution to the Deity, than the idea of a necessity for irregular interferences.'"

Lastly, the reviewer of the Vestiges in Blackwood's Magazine, who is understood to be a naturalist of distinguished ability, expresses himself in an equally decided manner:—

"To reduce to a system the acts of creation, or the development of the several forms of animal life, no more impeaches the authorship of creation, than to trace the laws by which the world is upheld, and its phenomena perpetually renewed. The presumption naturally rises in the mind, that the same Great Being would adopt the same mode of action in both cases.... To a mind accustomed, as is every educated mind, to regard the operations of Deity as essentially differing from the limited, sudden, evanescent impulses of a human agent, it is distressing to be compelled to picture to itself, the power of God as put forth in any other manner than in those slow, mysterious, universal laws, which have so plainly an eternity to work in; it pains the imagination to be obliged to assimilate those operations, for a moment, to the brief energy of a human will, or the manipulations of a human hand.... No, there is nothing atheistic, nothing irreligious, in the attempt to conceive creation, as well as reproduction, carried on by universal laws."

We have dwelt so much upon this matter because it is one in which popular feelings are likely to be most deeply interested. We shall give the author, too, the benefit of his Explanations on another point, elucidating his former statement of the transmutation of a crop of oats into a crop of rye:—

"'At the request,' says Dr. Lindley, 'of the Marquis of Bristol, the Reverend Lord Arthur Hervey, in the year 1843, sowed a handful of oats, treated them in the manner recommended, by continually stopping the flowering stems, and the produce, in 1844, has been for the most part ears of a very slender barley, having much the appearance of rye, with a little wheat, and some oats; samples of which are, by the favour of Lord Bristol, now before us.' The learned writer then adverts to the 'extraordinary, but certain fact, that in orchidaceous plants, forms just as different as wheat, barley, rye, and oats, have been proved by the most rigorous evidence, to be accidental variations of one common form, brought about no one knows how, but before our eyes, and rendered permanent by equally mysterious agency. Then says Reason, if they occur in orchidaceous plants, why should they not also occur in corn plants? for it is not likely that such vagaries will be confined to one little group in the vegetable kingdom; it is more rational to believe them to be a part of the general system of creation.... How can we be sure, that wheat, rye, oats, and barley, are not all accidental off-sets from some unsuspected species?'"

It may be so; but this would only prove that the "unsuspected species" included greater varieties, not that a really defined species was transmutable into another. But it is a point upon which no satisfactory result can be arrived at, since naturalists are not agreed in the classification of species, nor what attributes constitute one.

The Broomfield experiment is again brought forward, as decisive of the power to originate new life from inorganic elements. It will be remembered that Mr. WEEKES, of Sandwich, continued during three years to subject solutions to electric action, and invariably found insects produced in these instances, while they as invariably failed to appear where the electric action was not employed, but every other condition fulfilled. In a letter to the author of the Vestiges—two are inserted, one on the independent generation of fungi—Mr. WEEKES says—

"One hundred and sixty-six days from the commencement of the experiment—the first acari seen in connexion therewith, six in number and nearly full-grown, were discovered on the outside of the open glass vessel. On removing two pieces of card which had been laid over the mouth of this vessel, several fine specimens were found inhabiting the under surfaces, and others completely developed and in active motion here and there within the glass. Making my visit at an hour when a more favourable light entered the room, swarms of acari were found on the cards, about the glass tumbler, both within and without, and also on the platform of the apparatus. At this identical hour Dr. J. Black favoured me with a call, inspected the arrangements, and received six living specimens of the acarus produced from solution in the open vessel."

Specimens of the insect were sent to Paris, when they set a whole conclave of philosophers a-laughing, because they were found to contain ova. Other specimens were sent to London, but there their fate was sealed by their being found to be, not a new species, but one then abundant in the country. For ourselves we think the experiment not conclusive. We adopt HUME'S principle. All but universal experience having established that life is ex ovo only, we must have a proportionate body of counter evidence to establish a different mode of generation. At all events, Mr. WEEKES'S protracted gestation of 166 days by his galvanic battery is not likely, in the existing rage for despatch, to supersede the existing routine of reproduction.

LONDON: PRINTED BY C. WHITING, BEAUFORT HOUSE, STRAND.



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Chap. I.—General Considerations—Absence of the usual Historical Symptoms of National Decline—Definition of the Evils which Threaten Society.

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