Life: Its True Genesis Part 4

constantly endowed with life, and giving expression to it in all conceivable directions. And all that these vitalists need, to give a full interpretation to their facts of observation, is to supplement their theories with the Bible declaration that the animating principle of life is in the earth, from which all living things make their appearance, each distinctively after its own kind, whenever environing conditions favor.

For they severally recognize these "necessary conditions" as inseparable from all vital manifestation.

An effort has been made to show that Goethe was the great inspired prophet of the doctrine of "Evolution," as a ceaselessly progressive transformation of one thing into another, in the metamorphoses of plants and animals; and Haeckel quotes this pa.s.sage from him as entirely conclusive of this point: "Thus much we should have gained (towards solving the problem of life) that all the more perfect organic beings, among which we include fishes, amphibians, birds, mammals (and at the head of the latter, man), to be formed according to an archetype, [12] which merely fluctuates more or less in its ever persistent parts, and moreover, day by day, completes and transforms itself by means of reproduction." But this attempt to give a poetic glorification to Haeckelism in Goethe's speculations, and bring his commanding name into support of the evolution theory of development, will prove utterly futile in the light of his "archetype," and the persistency with which he concedes that nature adheres to perfected forms.

Goethe accepts the doctrine of _vis centripeta_, beyond the influence of which no developmental progress can be made in the way of diversifying or variegating ideal types. In other words, he virtually fixes limits to variability, from the outermost circ.u.mference of which reversion must inevitably take place. His whole doctrine may be summed up generally, if not specially, in these words: "The animal is fashioned _by_ circ.u.mstances _to_ circ.u.mstances," as the eagle to the air and mountain top, the mole to the loose soil in which it burrows, the seal to the water in which he frolics, and the bat to the cave, the twilight, and the night air. We should rather say that the animal is fashioned, after the Great Architect's pattern, _to_ circ.u.mstances, and is only varied _by_ circ.u.mstances, and that within the narrowest limits of variability. For the most that Goethe means by his "archetype" is an ideal pattern, after which, or on which, a natural group of plants or animals has been fashioned within the limits of possible variability. But by whose mind, or rather within whose mind, was this ideal pattern--this essential archetype--fashioned? Whence this ideal type, this natural group, this _Archeus_ pervading all nature and fashioning all organic matter? Not from the mind of Goethe certainly, nor from that of Aristotle or Lucretius, but from the one supreme mind of the universe, in which the groups of all living things were originally fashioned in the archetypal world--that world "which," according to Bolingbroke, "contains intelligibly all that is contained sensibly in our world."

This archetypal doctrine of Goethe, coupled, as he couples it, with the influences of environment, or necessary external conditions, with typical modifications only, while it entirely harmonizes with the Bible genesis of types (everything modeled after its kind), is far from aiding, or in any way abetting, the materialistic hypothesis of Haeckel, unless we make nature at once the creator and modifier of her own archetype. And even then the variability of species remains unaccounted for, except as we attribute to nature a _purpose_ to modify persistent forms under a law that is immutable even in its variability. For the a.s.sumption of an archetype carries with it an archetypal plan and purpose, with a degree of intelligence, either in or above nature, capable at once of conceiving the type and determining the limits of its variability. The question is not, therefore, as many may seem to think, whether species originate by miracle or by law, but whether laws and causes can exist independently of any predetermining will or agency in the universe.

Our language, and that of all civilized peoples on the globe, must be thoroughly recast, not only in its philological and etymological character, but in its ideologic, etiologic, and other significations, before we can successfully fall back on an antecedent cause without an effect, or an effect without an antecedent cause. Besides, the human mind would have to undergo as complete a subversion of structure as language itself, before any such attempt at recasting it, on the basis of modern materialistic ideas, could possibly prove successful. And then, at least one-third of our language would have to disappear in this iconoclastic reform. For instance, take any well-tabulated synopsis of our categories and their relations, and they would nearly all have to be recast or entirely abandoned. Time, s.p.a.ce, matter, motion, intellect, abstract ideas, volitions, affections, etc., with their several correlates or co-relations, would all have to undergo a thorough recasting process. The personal, intersocial, sympathetic, moral, and religious relations and obligations, would have to be summarily set aside for future revision, if not for sweeping rejection. All our ideas of life, materiality, spirituality, animality, vegetability, sensibility, etc., would have to fall into greater or less desuetude, the language disappearing with the ideas. All the words expressing our ideas of a superhuman agency, of G.o.d, angels, heaven, revelation, religious doctrines, sentiments, acts of worship, piety, human accountability to divine inst.i.tutions, rites, ceremonies, etc.,--to say nothing of maleficent spirits, mythological and other fabulous divinities, entering so largely into the spirit and machinery of all our best poetry--would utterly disappear from our language. All our churches, minsters, chapels, tabernacles, cathedrals, and temples erected to the "living G.o.d," embracing the finest and most majestic architecture of the world, would have to succ.u.mb to the iconoclastic zeal of these materialistic reformers. The ten categories of Aristotle would disappear in the one category of Haeckel, or possibly the two categories of Bastian--Matter and Motion! Philologically speaking, we should all be at sea, drifting, like a set of deaf-mutes, on a wide and inaudible ocean--all inarticulate, tongue-tied, voiceless--with only the screeching of the sea-mew, or some other sepulchral bird of the night, to greet us as in wide-mouthed derision of our speechlessness and folly.

But let us see how the incontestible facts of nature, and the truths of science, fit into the three simple Hebrew words referring to "germs," or the germinal principle of life, instead of the natural "seeds" of plants or trees. We have given what we claim to be the true rendering of these words. To show how perfectly they harmonize with all the phenomenal manifestations of life in nature, we hurriedly pa.s.s to our third chapter.

Chapter III.

Alternations of Forest Growths.

No fact has more profoundly puzzled the vegetable physiologist than the alternations of forest growths which are everywhere occurring without the apparent interposition of natural seeds, and which have been considered as wholly inexplicable except as one unsatisfactory theory after another has been suggested to account for the wide dissemination and distribution of their seeds. We have had any number of these theories, more or less ingeniously constructed, but it is safe to say that none of them satisfactorily accounts for more than a very limited number of the phenomena presented. It is only within a comparatively recent period that these alternations of timber growth have attracted the attention of scientific men; consequently little more than crude suggestions and ill-digested facts are at the command of the general reader and writer.

And yet the facts themselves, such as they are, would fill a dozen volumes of the size of Dr. Hough's recent "Report upon American Forestry." We can only give a few of the more important facts we have gathered, and many of these are so deficient in necessary detail that their value is greatly lessened for scientific uses. This is especially true of nearly all those noticed and collated by Dr. Hough, in his report to the United States Commissioner of Agriculture, made in 1877, in which the alternations in question are referred to at length, but no new suggestions presented, nor any very important new facts given.

If our construction of the Bible genesis be the correct one, it will, we think, be unhesitatingly admitted that all the facts collected and collated by Dr. Hough, together with others more carefully noticed by our ablest writers on vegetable physiology, not only harmonize with this ancient Hebrew text, but so completely fit into it, both in its implications and explications, that adverse criticism will be awed into silence rather than provoked into any new controversy on the subject. This remarkable genesis declares that the germs of all living things are in themselves upon the earth--"upon the face of all the earth." It is true that this declaration, as contained in the 11th verse of the first chapter of Genesis, is textually limited to the vegetation of the earth; but the further emphatic statement that "the animating principle of life" is in the earth, coupled with the more substantive fact that G.o.d commanded the waters and the earth to bring forth abundantly of every living creature, with the single exception of man, conclusively extends the language of the 11th verse to whatever vegetable and animal life the earth was specifically directed to "bring forth." It is our purpose to consider, in this connection, not only the various facts noticed and theories suggested by our ablest writers and thinkers on the subject of seed-distribution, but to ascertain, as far as possible, to what extent their several facts and theories harmonize with natural phenomena, and at the same time determine what disposition should be made of them in the light of this new genesis, herein for the first time disclosed.

Professor George P. Marsh, in his work on "Man and Nature," in which he treats largely of forestry in Europe, says that "when a forest old enough to have witnessed the mysteries of the Druids is felled, trees of other species spring up in its place; and when they, in their turn, fall before the axe, sometimes even as soon as they have spread their protecting shade over the surface, the germs which their predecessors had shed, perhaps centuries before, sprout up, and in due time, if not choked by other trees belonging to a later stage in the order of natural succession, restore again the original wood. In these cases, the seeds of the new crop may have been brought by the wind, by birds, by quadrupeds, or by other causes; but, in many instances, _this explanation is not probable_." It is manifest that Professor Marsh uses the word "germs," in this connection, in the sense of seeds only; for no seed-bearing trees "shed" any other germs than the natural seeds they bear. And while he admits that, in many instances, the generally accepted theory concerning the dissemination of seeds is not a probable one, he still clings to the exploded notion that vegetable physiology furnishes a record of "numerous instances where seeds have grown after lying dormant for ages in the earth." He further says, in the same connection, that "their vitality seems almost imperishable while they remain in the situations in which nature deposits them;" although he is reluctant to accept the accounts of "the growth of seeds which had lain for ages in the ashy dryness of the Egyptian catacombs," believing that they should be received with great caution, if not rejected altogether.

But why he should scruple about receiving these speculative accounts of ancient Egyptian cereals, which are sometimes hawked about the country for two and three dollars a seed, and, in the same breath, accept the absurder theory that seeds may lie dormant for ages in soils where the hardest and most enduring woods will utterly perish and disappear in a few brief years, is wholly inexplicable to us, except as an hypothesis to force a conclusion, or to account for the otherwise unaccountable alternations of forest growths.

But the idea that nature has any cunning devices by which she may hide seeds away where they will remain "almost imperishable" for ages, is not entirely new with Professor Marsh, nor is it any suggestion that would be protected by copyright. In finding the winds, birds, quadrupeds, and other a.s.sumed agencies of distribution improbable, he seeks, with Dr.

Dwight, for "the seeds of an ancient vegetation," and, finding none by actual observation, concludes that nature has some occult, and thoroughly surrept.i.tious, method of hiding them away, even in soils below the last glacial drift, where no microscope can possibly reach them. As the accounts of seeds taken from the mummy-cases of Egypt may answer the purposes of those seeking to palm off some new cereal as a nine-days wonder on the ignorant, so these speculations about the indestructibility of seeds, when hidden away by nature, may answer a like purpose in imposing upon the over-credulous; but they will hardly be accepted by the intelligent, much less the scientific, in the light of all the facts herein given. The simple truth is that all seeds are speedily perishable by out-door exposure. We hardly know a single seed that will survive beyond the second year when subjected to such exposure. If they do not germinate the first year, their vitality is utterly gone the second year, as hopelessly so as if they had been cast into the fire and consumed to ashes.

But there is a large cla.s.s of vegetable phenomena which wholly excludes the idea of this wonderful vitality of seeds. It is well known that soil brought up from deep wells and other excavations, often produces plants entirely unlike the prevailing local flora. This soil has been brought up, in many instances, from beneath the last glacial drift, where it must have remained for not less than a quarter of a million years at the lowest calculation, and may have remained for millions of years, if not longer; and yet the same singular phenomenon is presented. Exposed to the sun's rays, and the fructifying influences of showers and dews, the soil burgeons forth into an independent flora, and such as are nowhere to be found in the surrounding locality. The writer, in digging a well in Waukesha, Wis.,--a place now famous for the curative properties of its waters--in 1847, struck soil at a depth of about thirty-five feet--that which was evidently ante-glacial. The place is some twenty miles back from Milwaukee, and the whole section, far into the interior of the state from Lake Michigan, is one of drift, covering the primeval soil at various depths, from a few feet up to a hundred or more; and the imbedded soil must have remained in its place for untold ages. And yet, it was no sooner brought to the surface than it produced several small plants that were wholly unlike the prevailing local flora; although, unfortunately, they did not sufficiently mature to enable us to determine their genera and species. Considerable portions of this soil were dried and subjected by us, and the late Dr. John A. Savage, then president of Carroll College, to microscopic examination, but without discovering the slightest trace of any seed, or anything resembling seed, in the several portions carefully examined. The soil, however, contained, in its imbedded place, several large Norway spruce logs, in a more or less perfect state of preservation.

But there were no cones, nor chits to cones, to be found in it, although the most rigid examination was made at the time to discover them. That the seeds of these delicate little plants should have survived the wreck of this ancient Norwegian forest, or the drift from one, and burst forth into newness of life after hundreds of thousands, not to say millions of years, is decidedly too large a draft upon our credulity to be honored "without sight." But we will return to the alternations of forest growths.

It is within a comparatively recent period that extensive areas of hemlock, in Greene and Ulster Counties, N.Y., were cut off to supply the neighboring tanneries with bark. These clearings were no sooner made than oak, chestnut, birch, and other trees of deciduous foliage, sprang up and entirely usurped the place of the hemlock; for the reason, no doubt, that the soil had become chemically unbalanced for the growth of the latter, while its condition was entirely favorable for the development of the "germs" (not the natural seed) of the former. These changes in timber growths have been widely noticed in all parts of this country, as well as in Europe, but the universal supposition has been that they came from the natural seeds of their respective localities, those either scattered by the winds, or borne thither by the birds, by quadrupeds, or by some other natural agency. No one has suggested the theory of "primordial germs" or "vital units," or come any nearer to it than Dr. Dwight did in suggesting "the seeds of an ancient vegetation." The great truth of the Bible genesis has been wholly overlooked by reason of a faulty translation in the first instance, as taken from the Masoretic renderings of the sixth century, and implicitly followed since.

In 1845, a violent tornado swept a wide strip of forest in Northern New York, from the more thickly settled portions of Jefferson County to Lake Champlain. The timber that succ.u.mbed to the force of the tornado, and growing at various points along its track, was mainly beech, maple, birch, ash, hemlock, spruce, etc.; but it was rarely replaced, at any point, by the same timber, in the growths that almost immediately followed. The trees that are now growing along the track of the tornado are princ.i.p.ally poplar, cherry, birch, and a little beech and ironwood: no ash, maple, spruce, or hemlock, except here and there, at considerable intervals, a tree or two which may have been replaced by natural seed. The important fact noticeable, in this connection, is that the aggressive timber--that replacing the old--entirely usurped the place of the evergreen growths, supplanting them with those that were wholly deciduous. Besides, it does not appear that the poplar, the cherry, and the ironwood, which were altogether aggressive, previously grew near enough to the track of the tornado to have possibly supplied the seed necessary for their appearance and growth.

The fact was specially noticeable at the time, and has been widely communicated since, that the white oak timber cut off at Valley Forge for fuel and other army purposes in the American camp, in the winter of 1777-78, was succeeded by black oak, hickory, chestnut, etc.--the white oak entirely disappearing, although by far the most favorably situated for propagation by seed. But the alternations of forest growths had attracted too little attention at that time to render the meagre facts given of any special value to scientific men. If the usurping timber had grown in the immediate neighborhood (a fact not stated), it might have come from natural seeds, and not from primordial germs under "favoring conditions."

In the Ohio Agricultural Report of 1872, an account is given of a storm-track, in that state, which swept for a considerable distance, and was violent enough to bear down all the timber before it. It is stated that the path of this tornado (which must have occurred many years ago) "had grown up with black-walnut, another and different growth from that prostrated by the force of the storm." In this instance, there were no neighboring trees, except perhaps at distant intervals, from which the nuts of the black-walnut could have been derived, unless they had been promiscuously strewn by the tornado along its entire track. But it is, unfortunately, not stated that the tornado occurred at that opportune season of the year when the nuts were properly matured for planting.

In many parts of the United States, particularly in the South and West, the paths of local tornadoes--those sweeping the native forests long before the axe of civilization invaded them--may still be traced by the alternations of timber growths, extending for long distances, and through forests where there were no neighboring trees from which it was possible that their seeds could have been derived. One of these tornadoes the writer traced many years ago (as early as 1837) in South Alabama, and he is satisfied, both from observation and reading, that the instances are rare, if not altogether exceptional, where the clean path of a tornado, through any of our primitive forests, has been succeeded by the same growth of timber as that borne down by the winds.

Where the path of this ancient tornado of Alabama swept through a pine forest, a clean growth of oak was b.u.t.tressed on either side by pine; and _vice versa_, where it swept an oak forest. And it is certain that the tornado, whenever it may have occurred, could have exhibited no such discriminating freak as alternately to distribute acorns in pine growths, and pine cones in oak growths, either to make good a scientific theory or balk an unscientific one.

Professor Aga.s.siz, in pa.s.sing through a dense young spruce forest some years ago, on the south sh.o.r.e of Lake Superior, noticed that the ground was thickly strewn with fallen birch trunks, showing that their place had been but recently usurped by the spruce; and he supposed that the birch had first succ.u.mbed to the force of the winds, and the spruce promptly taken its place, since, as a general rule, an evergreen growth succeeds a deciduous, and _vice versa._ We have any number of well authenticated facts similar to this stated by Professor Aga.s.siz, but we cannot give place to them, in this connection, without greatly exceeding our limits.

Dr. Franklin B. Hough, in his recent "Report upon American Forestry," to which we have already referred, says: "It is not unusual to observe in the swamps of the northern states, an alternation of growth taking place without human agency. Extensive tracts of tamarack (_Larix Americana_) may be seen in northern Wisconsin that are dying out, and being succeeded by the balsam fir (_Abies balsamea_), which may be probably caused by the partial drainage of the swamps, from the decay or removal of a fallen tree that had obstructed the outlet." The writer of this work resided for a period of ten years or more in Wisconsin, and during that time traversed extensive portions of its territory, both before and after it became a state. As early as 1844, the extensive tamarack swamps of that region were manifestly dying out for the want of the proper nutritious elements in the soil, and the balsam fir rapidly taking its place, especially where the acc.u.mulations of soil, resulting from decayed vegetation, were favorable for its appearance. The drainage of the swamps had not been thought of at that time, nor had the swamps themselves been disposed of, to any considerable extent, by the federal government. They were subsequently granted to the state for educational purposes, and afterwards purchased up in the interest of speculative parties.

But the decay of the tamarack had really commenced long before population found its way, in any considerable numbers, into that section of the country; and the balsam fir had begun its usurpation, in many of the swamps, long prior to the advent there of the white man. Neither artificial drainage, nor accidental drainage, had anything to do with the appearance of the balsam fir, or the disappearance of the tamarack. The latter was manifestly dying out for the want of the proper nutriment, and the former coming in for the reason that the soil was chemically balanced for the development of its "primordial germs"--those everywhere implanted in the earth, to await the necessary conditions for their development and growth. The natural seeds of this balsam fir were not present in either the first, second, or third tamarack swamp in which this alternation of growth originally took place. The change commenced as soon as conditions favored, and not before. It is safe to say that, in none of these tamarack swamps, was there a single balsam fir cone, or a single chit to a cone, nor had there probably been for thousands of years, before the time when the first balsam fir made its appearance in that section. They came, as all primordial forests come, from germs, not from the seeds of trees.

Universally, the germ precedes the tree, as the tree precedes the seed, in all vegetal growths, from the lowest cryptogam to the lordliest conifer of the Pacific slope. Otherwise, we should be logically driven back to an act of "specific creation," which the materialist stoutly rejects, and the Bible genesis nowhere affirms.

Mr. George B. Emerson, in his valuable work on the "Trees and Shrubs of Ma.s.sachusetts," suggests as a cause (undoubtedly the true one) for the dying out of old forests, "the exhaustion of the nutritious elements of the soil required for their vigorous and successful growth." But he is evidently at fault in his speculations as to the alternations of forest growths. The Cretan labyrinth that everywhere confronts him is the "seed-theory," which is so inextricable to him that he constantly stumbles, as one scientifically blind, yet eager to lead the blind. All the phenomenal facts with which he deals admirably fit into the Bible genesis, but he fails to see it because the sublime truth (with him) lies locked up in an unmeaning translation. He is indefatigable, however, in his hunt after seeds where there are no seeds, and in his jumps at conclusions where there are manifestly no data to justify them.

He says: "Nature points out in various ways, and the observation of practical men has almost uniformly confirmed the conclusion to which the philosophical botanist has come from theoretical considerations, that a rotation of crops is as important in the forests as in the cultivated fields." And he supplements this statement (measurably a true one) by adding that "a pine forest is often, without the agency of man, succeeded by an oak forest, _where there were a few oaks previously scattered through the woods to furnish seed._" This is a very cautious, as well as circ.u.mspect, statement; but one that Mr. Emerson would not have made, had his experience and observation been that of Professor Aga.s.siz, Professor Marsh, and others we might name. His few oaks previously scattered through the woods are no doubt among the "theoretical considerations" taken into account by him, as a philosophical botanist rather than a practical one.

They were necessary for the extreme caution with which he would state a proposition when its "conditioning facts" were not fully known by him. His anxiety to account for the appearance of an oak forest in the place of a pine, where the latter had been cut off, was commendable enough to justify him in a pretty broad supposition, but not in any such general statement as he here makes. Had he consulted any of the older inhabitants of Westford, Littleton, and adjoining towns, in his own state, he would have found that not a few oak forests had succeeded the pine without the intervention of "scattered oaks," or even scattered acorns, in the localities named. Nor would his "squirrel-theory" of distribution have been very confidently adhered to, fifty years ago, in localties where the s.h.a.gbark walnut was almost as abundant as the white oak itself. No squirrel will gather acorns where he can possibly get hickory nuts, and few will gather hickory nuts where the larger and thinner-sh.e.l.led walnuts are to be had for the picking. The squirrel is provident, but no more so than he is fastidious in the choice of his food. He never plants acorns except for his own gratification, and is never gratified with indifferent food so long as he can command that which is to his liking.

In further speaking of the "exhausted elements" of the soil--those necessary for the food of trees as well as plants, and without which they inevitably perish and disappear--Mr. Emerson says; "This is clearly indicated in what is constantly going on in the forests, particularly the fact which I have already stated, and which is abundantly confirmed by my correspondents, that a forest of one kind is frequently succeeded _by a spontaneous growth of trees of another kind._" In the sense in which he manifestly uses the term "spontaneous" in this connection, his new forest might be accounted for on the theory of "primordial germs," but not on that of "seeds;" for few trees or shrubs in Ma.s.sachusetts bear winged seeds, or possess any other means of dispersion (the _Acer_ family excepted) than those common to our general forest growths. Spontaneity, in a strictly scientific sense, is not predicable upon the artificial or chance sowing of either acorns, hickory nuts, or the chits to pine cones.

A spontaneous growth implies a process which is neither usual nor accidental--a growth without external cause, but from inherent natural tendency--and it is questionable whether there is any such process in nature. It belongs to the same cla.s.s of idle speculations as "spontaneous generation" in the infusorial world--a subject that will be considered as we advance in this work.

Our vegetable physiologists, Mr. Emerson among the number, are simply unfortunate in their use of terms--those expressing even the commonest operations of nature. In their genesis of plants and trees they need to adhere a little more closely to the genesis of induction, and use language in harmony with the phenomenal facts and characteristics which they are called upon to explain. But Mr. Emerson was not alone at fault in this almost universal slip of the scientific pen. He quotes from a letter of Mr. P. Sanderson, of East Whately, Ma.s.s., in which the writer says: "There is an instance on my farm of spruce and hackmatack being succeeded by a spontaneous growth of maple wood;" and he adds that "instances are also mentioned by him (Mr. Sanderson) of beech and maple succeeding oaks; oaks following pines, and the reverse; hemlock succeeded by white birch in cold places, and by hard maple in warm ones; beech succeeded by maple, elm, etc; and, in fact, the occurrence was so common that surprise was expressed at the asking of the question."

These several alternations in timber growths, effectually vouched for by Mr. Emerson, occurring "spontaneously" as stated, can hardly be accounted for on any other theory than the presence of "germs" and "favoring conditions," such as we have named in connection with the Bible genesis.

They might possibly be explained on the theory of "scattered seeds," if the several growths had made their appearance gradually, and not "spontaneously," as stated. The misfortune with Mr. Emerson, as well as with his several "reliable correspondents," was, that his facts are too meagrely imparted, in the necessary details, to draw any satisfactory conclusions from them--such as the nearness or distance of surrounding trees of the same species, and the possible chances of their seeds taking lodgment in the soil from which they grew. But, fortunately, there are facts, and those abundantly substantiated, which entirely negative the presence of seeds in the soils where these "spontaneous growths" are said to have appeared. In some instances, they cover large tracts of land, at distances of thirty, forty, fifty, and even hundreds of miles, from any native forest from which seed could have been derived.

Dr. Dwight, in the second volume of his "Travels," mentions visiting a town in Vermont (Panton, near Vergennes), in which a piece of land that had been once cultivated, but was afterwards permitted to lie waste, "yielded a thick and vigorous growth of hickory, _where there was not a single hickory tree in any original forest within fifty miles of the place_." Of this piece of land he says: "The native growth here was white pine, of which I did not see a single stem in the whole grove of hickory."

He is greatly puzzled to account for this isolated growth of hickory, but readily concludes that "the fruit was too heavy to be carried fifty miles by birds; besides" he adds, "it is not eaten by any bird indigenous to Vermont." And even if the birds had carried the nuts thither, not one of them could have been planted there unless the nut-eating bird had been caught and destroyed on the spot, and the nut released from its crop. This might account for the appearance of a single tree, but not for a "whole grove of hickory;" and the squirrels certainly could not have been provident enough to plant any considerable grove in this particular locality, and nowhere else within fifty miles of it. The winds could not have borne them that distance without dropping a single nut by the way, and there is only one supposition left, which is that indicated in the Bible genesis.

While Dr. Dwight emphatically rejects the "transportation theory," he imagined he had solved the difficulty in his suggestion "that the cultivation of the land had brought up the seeds of a former forest, within the limits of vegetation, and given them an opportunity to vegetate." But the utter absurdity of this theory may be demonstrated by any one inside of two years, by placing hickory nuts, in different soils, at a depth to which an ordinary plough-point would reach in cultivation; and then, at the end of the second year, examining those that did not germinate the first year. The commonest observer of a hickory forest knows that if the fallen nuts do not germinate the first year, their vitality is utterly and hopelessly gone. It makes no difference whether you leave the nuts on the ground where they fall, or place them one inch or twenty inches beneath the soil, the result will be the same. At the end of two years, you can pulverize them between thumb and finger almost as easily as so much dried loam. The idea of deriving a new forest from such nuts, is hardly less absurd than that of emptying the Egyptian catacombs of their old mummy-cases, in the expectation of seeing a race of Theban kings stalking the earth as before the foundations of either Carthage or Rome were laid.

Dr. Dwight was a very close and accurate observer of nature, and suffered few of even the minor points of detail to escape him. In the same work, as well as in the same connection, he gives an account of another forest, which he supposes sprang spontaneously from "the seeds of an ancient vegetation." He says: "A field about five miles from Northampton (Ma.s.s.), on an eminence called 'Rail Hill,' was cultivated about a century ago (_circiter_ 1720). The native growth here, and in all the surrounding region, was wholly oak, chestnut, etc. As the field belonged to my grandfather, I had the best opportunity of learning its history. It contained about five acres, in the form of an irregular parallelogram. As the savages rendered the cultivation dangerous, it was given up. On this ground there sprang up a grove of white pines, covering the field and retaining its figure exactly. So far as I remember, there was not in it a single oak or chestnut tree;" and he adds, "_there was not a single pine whose seeds were, or, probably, had for ages been, sufficiently near to have been planted on this spot_." He supposes, however, that the "seeds"

(pine cone chits) had lain dormant for ages before cultivation brought them up "within the limits of vegetation."

As early as 1807, Judge Peters, of Philadelphia, became satisfied that all that elevated region around the head waters of the Delaware, Alleghany, and Genesee Rivers, then covered with heavy growths of hemlock, or with forests of beech and sugar-maple, was originally an oak forest, probably covering most of that entire region. And Mr. John Adlum, of Havre de Grace, Md., who originally surveyed the lands south of the great bend of the Susquehanna, between that river and the Delaware, conceived the same idea as early as 1788. The section surveyed by him was chiefly covered with beech and sugar-maple; in fact, it was in what was called, at the time, "the beech and sugar-maple country." He drew his inferences from the fact that he found, here and there, at irregular intervals, red and white oaks growing to an enormous size, none being less than sixteen feet, and many measuring twenty-two feet or more, in circ.u.mference five feet above the ground. He says that "the hemlock in this region seems to have succeeded the oak, while the beech and maple no doubt succeeded the hemlock." This last inference would seem to have been made from the fact that clumps of large hemlock trees were, at that time, still growing at intervals among the larger deciduous trees.

Indeed, there is no better established fact in vegetable physiology than that of these alternations of forest growths. They sometimes come on gradually, but, in a majority of instances, they make their appearance at once on the cutting off of old forests, in the tracks of tornadoes, or where fire has devastated extensive regions of timber. From the facts which have been gathered, it is difficult to determine any regular order of alternation, except that oaks and other deciduous trees succeed the different varieties of pine and other evergreen growths, and, perhaps, _vice versa_. In Dr. Hough's report upon American Forestry, he makes a brief summary of the order of these alternations in different sections of the country, on the authority of persons apparently more or less well-informed on the subject, but by no means accurate observers. He says that in the region about Green Bay, Wis., overrun by the fires of 1871, "dense growths of poplars and birches have sprung up, and are growing rapidly;" but he omits the most important fact of all, in his failure to state the previous growths of timber, or whether there were any neighboring growths of poplar along the track of the burnt district from which seed might have been derived.

Here are some of his more important statements:--

"At Clarksville, Ga., oak and hickory lands, when cleared, invariably grew up with pine. This is true of that region of country generally."

"At Aiken, S.C., the long-leaf pine is succeeded by oaks and other deciduous trees, and _vice versa_."

"In Bristol County, Ma.s.s., in some cases, after pines have been cut off, oak, maple, and birch have sprung up abundantly."

"In Hanc.o.c.k County, Ill., oaks have been succeeded by hickories."

"In East Hamburgh, Erie County, N.Y., a growth of hemlock, elm, and soft maple, was succeeded by beech, soft maple, and hard maple, but a good deal more of the last named than any other."

This is the general character of the summary given, and if its object were simply to show the fact that these alternations actually took place (one that n.o.body has disputed in the last half century), his chapter on the "Alternations of Forest Growths," is a scientific success. The information really desired in these cases, was that imparted by Dr. Dwight in his suggestive work of travel, in which all the incidental facts and surrounding circ.u.mstances are fully given. It does not appear from any of the foregoing statements, given as a specimen, that there were any neighboring trees sufficiently near to have supplied seed for the new forests taking the place of the old,--manifestly the most important physiological fact connected with the whole inquiry, whether looking to proper forest-management, or to future "schools of forestry," certain to be established in this country, as they have been in most of the leading countries of Europe.

It is, however, stated by Dr. Hough, in his voluminous report, that, "in New England, the pine (without giving its varieties) is often succeeded by the white birch, and, in New Jersey, by the oak; the succession of oak by pine, and the reverse, in the southern states." And it is further stated, without reference to the nature and quality of the different soils, or the absence or presence of neighboring seed-trees, that "poplars and other soft woods are very often found coming up in pine districts that have been ravaged by fire." "We have noticed," he continues, "in Nebraska, ash, elm, and box-elder following cottonwood. In the natural starting of timber in the prairie region of Illinois, where the stopping of fires allowed, we often see a hazel coppice; after a time the cratA gus, and finally the oaks, black-walnuts, and other timber. These growths are often quite aggressive on the prairies. In Florida, the black-jack oak usually takes the place of the long-leaf pine." In all these cases, the contiguousness of similar, or dissimilar growths, is not stated.

He nevertheless cites a most important fact respecting the alternations of timber growth, noticed by Sir Alexander Mackenzie, in his overland journey from Montreal to the Arctic Ocean, in 1789, who found, in the vicinity of Slave Lake, that the banks were covered with large quant.i.ties of burnt wood lying on the ground, where young poplar trees had sprung up immediately after the destruction of the previous growths by fire. In noticing this fact, the indefatigable English explorer remarks: "It is a very curious and extraordinary circ.u.mstance that land covered with spruce, pine, and white birch, when laid waste by fire, should subsequently produce nothing but poplars, _where none of that species of tree was previously to be found"_. But facts of a similar character are too numerous and well-authenticated to be questioned by any intelligent authority. And they all point to but one solution--that of primordial germs quickened into life by the necessary environing conditions. The appearance of a single poplar in the locality named, or even a dozen of them for that matter, might be accounted for on the theory that a bird of pa.s.sage had dropped them there after the fire; but, under no conceivable circ.u.mstances, could the dispersion of the requisite amount of seed to plant an extensive burnt district, along the banks of Slave Lake, have occurred on any other theory than that emphatically set forth, as a physiological fact, in the Bible genesis.

There is manifestly importance enough attaching to this subject to justify a much wider range of observation and inquiry than has yet been made. Pine forests have been cut off in Alabama and Georgia, covering extensive areas, where there was not a single oak tree in a circuit of miles; and yet the oak has promptly made its appearance, in several varieties, over the whole cleared district. And it is entirely safe to say that, had the ground been thoroughly examined, from the surface to ten feet below it, after the pine had been felled, not the first sign of an acorn could have been met with anywhere within the whole area of the clearing, no matter whether it covered ten acres, twenty, or a hundred. The paths of the tornadoes we have referred to conclusively show this. The new-born forests, in these cases, do not come from seed, but from the living, indestructible, vital principles implanted in the earth, before it was specifically commanded to "bring forth," in the language of the Bible genesis. The "materialists," like Professor Bastian, Herbert Spencer, and others, may sneer at this declaration, but let them advance some rational theory to the contrary, to account for these alternations of forest growths, before they lay bare the joints of their scientific armor too confidently to the thrusts of the next new-comer in the field of scientific investigation. Sneers are cheap weapons--the mere side-arms of pretension and frippery--but they never bear so deadly a gibe as when effectually turned on the sneerer.

Professor Moritz Wagner, in his description of Mount Ararat, mentions "a singular phenomenon," to which his guide drew his attention, "in the appearance of several plants on soil lately thrown up by an earthquake, which grew nowhere else on the mountain, and had never been observed in this (that) region before." This writer, thereupon, goes into a disquisition upon the vitality of long-buried seeds, but only to mar the value of his very important observation. The fact that these new plants were rejected by the other soil of the mountain--that not thrown up by the earthquake--is the only other observation of value made by this writer.