"Nature never lends
The smallest scruple of her excellence,
But, like a thrifty goddess, she determines
Herself the glory of a creditor--
Both thanks and use."
Those who think, therefore, to make nature a debtor, by reversing her laws of propagation and making her dependent on what she bestows in use, will never find out the smallest scruple of her excellence, nor add to her glory as a creditor. All things are framed in her prodigality, and the seeds of plants and trees are no exception to the quality of her bestowals. We may reason, syllogize, speculate as we will, the first plant and the first tree were not nature's thankless bastards, but her legitimate and loving offspring. She engendered them in her own fruitful breast, and her "copy is eterne."
Chapter IV.
The Distribution and Vitality of Seeds.
Few questions have attracted more attention among vegetable physiologists, of late years, than the dispersion and migration of seeds from place to place in the earth, and it is safe to say that none has been more unsatisfactorily answered. In the case of quite a number of plants and trees, special contrivances would seem to have been provided by nature for insuring their dispersion, as well as migration. With a small number of plants, for instance, the seeds are discharged for short distances by the explosive force of their seed-vessels, when properly matured; an equally small number have certain membranous contrivances, called "wings," by which they may be borne still greater distances; others, again, are provided with light feathery tufts, to which the seed is attached, and these may be carried by the winds several miles before finding a lodgment in the soil; while many others are inclosed in prickly and barb-pointed coverings by which they attach themselves to animals, and even birds, and may be transported to almost any distance. But with the great majority of plants and trees, as the seeds fall so they lie, and must continue to lie until they either germinate or perish, or are accidentally dispersed or scattered by some extrinsic agency. The anxiety of speculative botanists to account for the recognized alternations of forest and other growths, have led to the different theories of transportation we have named; and when these theories have been supplemented by the alleged wonderful vitality of seeds, in the cunning recesses in which nature manages to conceal them, they imagine the whole difficulty solved, when, in point of fact, it remains wholly unsolved.
This theory of the "wonderful vitality" of seeds is simply one, as we have said, to force a conclusion--to get rid of a lion in the scientific path. Professor Marsh, with other eminent and scholarly writers on vegetable physiology, scouts the idea that the seeds of some of our cereal crops have been preserved for three or four thousand years in the "ashy dryness" of the Egyptian catacombs. But what better repository in which to preserve them? Certainly, none of our modern granaries, with all their machinery for keeping the grain dry, or from over-heating. Nor are the catacombs to be despised, as compared with any out-door means of storage yet suggested by the wit of man. The only means nature has of storage, or rather of preservation by storage, is to welcome the seed back to her bosom--the earth from which its parent-seed sprang--where it may be speedily quickened into life, and bear "other grain," not itself. For "that which thou sowest is not quickened, except it die;" and much more is that dead which is not quickened. Whenever seed is thus returned to nature's bosom--all-palpitating as it is with life--whether it quickens or not, it dies; and there is no resurrection for dead seed from the earth, any more than there is for the occupants of the exhumed mummy-cases of ancient Thebes.
The belief in this wonderful vitality of seeds, in the positions in which nature deposits them, is pretty much on a par with that which assigns a thousand years to the life of a crow. As nobody but the scholastic fool in the fable has ever attempted to verify the correctness of this latter belief, so it is safe to assume that the experiment of verifying the former will not be successfully undertaken within the next thousand years, to say the least. It is well known that the vitality of seeds (so far, at least, as nature handles them) depends, upon her cunning contrivances for their preservation, as well as their dispersion. But many seeds, in which these contrivances would seem to be the most perfect, will not germinate after the second year, and few will do so to advantage after the third or fourth year, even when they have been kept under the most favorable circumstances, or in uniform dryness and temperature. Farmers, who have had practical experience in this matter, and care little for what is merely theoretical, will never plant seed that is three or four years old when they can get that of the previous year's growth. It is certain that no hickory nut will retain its vitality beyond the first year of its exposure to a New England soil and climate, and few seeds are better protected by nature against such exposure; and it is equally questionable whether the chits to Dr. Dwight's pine cones would have had any better chance of survival at the time the Indians infested the neighborhood of Northampton, and regularly fired the woods every autumn.
Although Professor Marsh confidently says, in his work on. "Man and Nature," that "the vitality of seeds seems almost imperishable while they remain in the situations in which nature deposits them," he will no doubt admit that this statement rests on no experimental knowledge, but simply on the hypothesis that the new forests and new species of plants to which he refers, originated from seeds, and not from primordial germs everywhere implanted in the earth. Dr. G. Chaplin Child, who swallows the "Egyptian wheat" story, mummy-cases and all, in speaking of some of the English "dykes" or mound-fences which have existed from time well-nigh immemorial, says: "No sooner are these dykes leveled than the seeds of wild flowers, which must have lain in them for ages, sprout forth vigorously, just as if the ground had been recently sown with seed." He also mentions, as a more or less remarkable fact, "that a house, which was known to have existed for two hundred years, was pulled down, and, no sooner was the surface soil exposed to the influence of light and moisture, than it became covered with a crop of wild-mustard or charlock." And he instances these facts to show that the seeds of this charlock, and these dyke plants, had lain dormant in the soil from the time the dykes were built, and the house erected. But these physiological facts, however well authenticated they may have been, are no more conclusive of the presence of dormant seed, than the appearance of the common plantain about a recently built dwelling-house, where none ever grew before, is proof that the seeds of this common household plant had lain dormant for ages before the house was erected. We cannot tell why this common plant follows the domestic household, any more than we can tell why rats follow civilization. But they are both sufficiently annoying at times, to satisfy us that they do follow, however inexplicable the reason may be.
The same writer further says, in connection with the foregoing statements: "Instances (of the vitality of seeds) might easily be multiplied almost indefinitely, but we shall be satisfied with noticing one of a very extraordinary kind. In the time of the Emperor Hadrian, a man died soon after he had eaten plentifully of raspberries. He was buried at Dorchester. About twenty-eight years ago, the remains of this man, together with coins of the Roman Emperor, were discovered in a coffin (!) at the bottom of a barrow, thirty feet under the surface. The man had thus lain undisturbed for some 1700 years. But the most curious circumstance connected with the case was, that the raspberry seeds were recovered from the stomach (!) and sown in the garden of the Horticultural Society, where they germinated and grew into healthy bushes," Here is circumstantiality enough to satisfy the most unlimited skepticism, provided that the facts were satisfactorily vouched for by the living, and the record left by the dead were sufficiently explicit in detail, and conclusive in identity of subject. Then to suggest even a reasonable doubt would, we admit, be equivalent to making truth a circumstantial liar.
But this most remarkable story will bear repetition, with a few running comments. "The man (presumably a Roman soldier) died seventeen hundred years ago." This is not unlikely. "He died of eating too plentifully of raspberries;" a circumstance not altogether improbable. "He was buried at Dorchester;" where, of course, there were no records of deaths and burials kept at the time, and hence, we should have to question the record, if one were presented. "He was also buried in a coffin, or, at least, dug up in one." This statement must be received cum grano. The Romans never used coffins, and, under the empire, they burnt most of their dead. After a battle, however, they generally piled them up in heaps, and, where there was a lack of fuel to burn them, they covered them with the surface soil, taking good care to put a Roman coin in each soldier's mouth, so that he might pay the ferryman in Hades. "There was thirty-five feet of surface soil shoveled on top of this particular Roman,"--showing that he was a very consequential personage in camp. No wonder, then, that all these nice particularities of statement should have been circumstantially noted in the commanding general's "order of the day," and thus been handed down to posterity for the future advancement of science! "He had lain undisturbed for nearly two thousand years." Almost any one would have done so, with that amount of surface soil shoveled on top of him. "The seeds were recovered from his stomach;" that is, after improvidently snatching away the Roman soldier's life, they took good care to preserve their own, as well as the stomach in which they were deposited. "The seeds were planted in the Horticultural Society's garden, where they flourished vigorously."