Chapter IX.
Force-Correlation, Differentiation and Other Life Theories.
Among the more startling, if not decidedly brilliant, vital theories which have been advanced within the last few years, is that which makes life an "undiscovered correlative of force." Those who have the reputation of being the profoundest thinkers and delvers in the newly-discovered realm of Force-correlation in Europe, and who have more or less modestly contributed to that reputation themselves, have evidently thought to eclipse, if not to entirely throw into the shade, the great exploit of Leverrier, in pointing out the exact place in their empirical heavens where the superior optics of some future observer shall behold, in all its glory, this "undiscovered correlative of force," which they have indicated as lying within the higher possibilities and potentialities of matter. Precisely what they mean by this undiscovered correlate, is what puzzles us quite as much to determine as it does the materialists to explain. Were they to define life as an "undiscovered force" simply, their definition would manifestly lack in brilliancy what it would conclusively make up in precision and accuracy of definitional statement. But such a poor metaphrastic and half-circular exposition of vital force would never answer the necessities of that profounder profundity required for the success of modern scientific treatises. Hence the interpolation of this "correlative" of theirs. Let us ascertain, if we can, what it means, since they are so chary of informing us themselves.
A "correlate" of a thing--any thing--simply implies the reciprocal relation it bears to some other thing. As a cognate term it expresses nothing, can express nothing, but reciprocity of relationship, such as father to son, brother to sister, uncle to aunt, nephews to nieces, etc. As applied to vital force, it means nothing more nor less than that this particular force stands in some sort of relationship to the other forces of nature, or, as they would have us believe, the material forces of nature. And the simple strength or potentiality of this relationship is what makes all the difference between the severally related forces of the universe, since it would be as impossible to differentiate a fixed relationship as to change the nature of vital units. But whether vital force, as a distinct correlate, is paternal or filial, brotherly or sisterly, avuncular or amital in its relationship, is not stated. The scientific formula, however, may be stated thus: As A (chemical force) is to B (molecular force) so is C (a third known force) to x (the vital or unknown force); so that, by multiplying the antecedents and consequents together, and eliminating the value of x, we may mathematically obtain the value of vital force.
But to eliminate the value of x is what troubles them. Herbert Spencer has tried his hand at it, but failed to express life under any higher correlation than "molecular force;" nor can he definitely inform us whether either force is third or fourth cousin to the other. But he manifestly regards their relationship as constituting either a very attractive or highly repulsive force. In his vexation at not finding the value of x, he is driven from mathematical to mechanical biology, and gives us this new definitional value of life--that singularly contumacious quantity which so persistently refuses to be eliminated in scientific equations: "Life is molecular machinery worked by molecular force." But as Professor Beale has utterly demoralized, if not demolished, this machinery, in his recent treatise on "The Mystery of Life," we will spare it any further blows, and proceed to the consideration of "molecular force."
Before we proceed however, to the consideration of this force, let us definitely understand the meaning of the terms we shall be called upon to use. We can have no difficulty in understanding the meaning of "molecular attraction," or that force acting immediately on the integrant molecules or particles of a body, as distinguished from the attraction of gravitation which acts at unlimited distances. But when it comes to ascribing other and higher manifestations of power to molecules, such as have not been scientifically shown to exist, we must feel our way with caution, and demand of these pretentious molecules, or rather of their materialistic backers, a reason for the faith, or rather force, that is in them.
It is agreed by all physicists, as well as chemists, that a "molecule" is the smallest conceivable quantity of a simple or compound substance, as an "atom" is the smallest conceivable quantity of an element which enters into combination with other elements to form material substance. For instance, the smallest conceivable quantity of water is a molecule, while the smallest conceivable quantity of either of the two elements of which water is composed, is an atom. In every molecule of water, therefore, there are three elementary atoms, two of hydrogen and one of oxygen. And since a molecule, as a general rule, contains two or more atoms, and may contain many of them, why not predicate dynamic force of the atoms, which lie one step nearer the elementary forces of nature? For the mightiest forces of nature lie in these elements, when forced into unnatural alliances, or chained up in durance vile. It is in the elements of matter, and not in its molecules, that this tremendous dynamic force resides. Man, knowing this, harnesses them into his service, first by forcing them into unnatural alliances, as in the case of charcoal, sulphur and saltpetre, and then successfully pitting them in conflict against the rocks and the general inertia of matter. To charge all the destructive work they do on the innocent and harmless molecules, which are two steps removed from the actual force expended, is drawing conclusions from the sheerest hypothetical data. It is the office of "molecular force," if there is any meaning to the term beyond what is expressed by "molecular attraction," to conserve matter--bind rocks together, not rend them in sunder.
If the dynamic forces of nature lie pent up in the molecules, then man must array molecular force against molecular force in order to rend rocks and tear mountains in sunder. This theory of molecular force, as extended to vital physics in the force-doctrine of life, is irreconcilably at war with the principal phenomena of life, and should be classed with the other undiscovered correlates of force, which Professor Beale speaks of as "the fictions of a mechanical imagination." The truth is that these much abused and much slandered molecules are the most innocent and harmless things in nature. They never become destructive unless some other force than that inhering in themselves drags them into its service and hurls them along a devastating path. Of themselves, they are the very quintessence of quiessence in the universe, and, when formed in nature's laboratory, at once seek quiet and loving companionship with kindred molecules, and retain it forever afterwards. The idea that they should break away from their loving molecular embrace, and, by any process of differentiation or constructive agency of their own, seek an alliance with some living dog-germ in order to be built up into living dog-tissue, presents about as perverse and wayward an impulse on the part of matter as can well be imagined by the scientific mind. That the dog-germ should seek to get hold of, and differentiate them, we can well understand. The Circean witchery and enticement is all on the part of the dog-germ, not in the inclination of the molecules.
If there is any truth in this molecular-force-theory of life, it is about time for us to discard some of the old categories respecting matter, motion, and life, and substitute new ones in their place. In the multiplicity of new scientific terms constantly springing up for recognition in these days, there ought to be no difficulty in expressing the true categories, and assigning to them their proper definitional value. To include physical force, chemical force, molecular force, and vital force all under one and the same category, and then interpret their several modes of action on any theory of force-correlation, is not emancipating language from the gross thraldom into which their "molecular machinery" has driven it. Besides, there is moral force, mental force, the force of will, the force of reason, the force of honesty, the force of fraud, etc., and any number of other forces, all possessing more or less impetus or momentum, and capable of binding or coercing persons and things, in all their diversified relations, correlations, incidences, coincidences, affinities, antagonisms, and so on through an interminable chapter of interchangeable predications. All these different expressions of force are to be tethered together--definitionally bound hand and foot--under the one explanatory head of "force-correlation." We protest against the labor of thus unifying all the natural forces of the universe, even if it were practicable under scientific methods.
But Professor Tyndall denies that "molecular groupings" and "molecular motions" explain anything--account for anything--in the way of explicating life-manifestations, or determining what life is.[[31]] And it would be difficult to cite a stronger and more determined materialist as authority on the point we are considering. He says: "If love were known to be associated with a right-handed spiral motion of the molecules of the brain, and hate with the left-handed, we should remain as ignorant as before, as to the cause of motion." But there is no proof that the molecules of the brain manifest any other motions than those necessary for keeping up the normal condition of health and vital activity in the brain itself. No one can be certain that he has seen these molecules in a state of mental activity; for where portions of the human brain have been exposed to microscopic examination, even in perfect states of consciousness on the part of those whose brains have been laid bare, there can be no certainty that the molecular action, if any, is referable to one set of movements more than another. And even in the case of animalcules, as seen in the object glass of the microscope, there is no absolute certainty that their quick, darting or jerking movements are due to any life-manifestation, as heretofore assumed. Some quite as well defined forms are entirely motionless, and if all were so, it would be idle to predicate vitality of them.[[32]] These infinitessimal and constantly varying forms, many of them not the one hundred-thousandth part of an inch in length, to say nothing of their other dimensions, may owe their oscillations, wave movements, darting and other manifestations, and even their molecular arrangements and rearrangements, to other causes than those strictly "vital." And it should be borne in mind that their actual movements are just as much exaggerated under the microscope as their real dimensions. But as they make their appearance in organic infusions only, they are presumably vital organisms rather than fomentative or mere filamentous yeast-manifestations.