There are two other phases or modifications of the electric principle, as I judge them to be, which are not so generally classed here. I refer to the forces of animal and vegetable vitality, as viewed in the next section.
VITAL FORCES—ANIMAL AND VEGETABLE.
Upon these points I must be permitted to offer a few words.
Of the animal kingdom, I regard the "nervous fluid" or "nervous influence," popularly so called, as being the very principle of animal vitalization—the life force; and that, a modification of the electric force. It is, I think, pretty generally conceded at this day that the "nervous influence" is probably electric. There are some alleged facts, and other certain facts, which go far to sustain this view. It is said that if we transfix, with a steel needle, a large nerve of a living animal, as the great ischiatic, and let it remain in that condition a suitable time, the needle becomes permanently magnetized. So, too, if the point of a lancet be held for some length of time between the severed ends of a newly-divided large nerve, that point, as I have heard it affirmed, on what appeared to be good authority, becomes magnetized; although I have not attempted to verify either of these cases by experiment. However, admitting them to be true, the metal is charged with simply the "nervous fluid." But the fact on which I myself chiefly rely for evidence of this identification, being almost daily conversant with it in my practice, is this: The "nervous influence" obeys the laws of electrical polarization, attraction and repulsion. When I treat a paralyzed part, in which, to all appearance, the action of the nerve force is suspended, I have but to assume that this force is electric, and apply the poles of my instrument accordingly, and I bring it in from the more healthy parts, along with the inorganic current from my machine. Forcing conduction through the nerves, by means of my artificial apparatus, I rouse the susceptibility of the nerves until they will normally conduct the "nervous influence" or electro-vital fluid, as I term it, and the paralysis is removed. Again, if I treat an inflamed part, in which the capillaries are engorged with arterial blood, I have but to assume that the affected part is overcharged with the electro-vital fluid, through the nerves and the arterial blood, and so to apply my electrodes, according to well known electrical law, as to produce mutual repulsion, and the inflammatory action is sure to be repressed. I manifestly change the polarization of the parts. This thing is so perfectly regular and constant that I am entirely assured, before touching the patient, what sort of effect will be produced by this or that arrangement in the application of the poles of the instrument. If I desire to increase or depress the nervous force in any given case, I find myself able, on this principle, to produce the one effect or the other, at will. Hence, I say, the nervous influence obeys the electric laws, just as does the inorganic electricity. I find this subtle agent not in the nerves only, but also in muscle and blood—more especially in arterial blood. Indeed it seems to pervade, more or less, the entire solids and fluids of the animal system. And wherever it exists, its action is just that of an electro-vital force. Examples of this fact will appear further along in the present work. While, therefore, I can not affirm the identity of animal electricity and animal vitality, the theory of their identification, to my view, best accords with the manifestations under correct therapeutic treatment, and I am unaware of any established fact to disprove it.
Vegetable vitality, also, I regard as another modification of the electric force. The fact has been proved by repeated experiments, that galvanic currents, passed among the roots of vegetables, causes a quickened development of the plants to a degree that would be deemed incredible by almost any one who had neither seen it nor learned its rationale. I have seen it stated, on authority which commanded my credence, that by this process lettuce leaves may be grown, within a few hours only, "from the size of a mouse's ear to dimensions large enough for convenient use on the dinner-table."
The following experiment has been related to me by several different parties, as having been made by Judge Caton, of Ottawa, Illinois; and subsequently the same has been confirmed to me by his brother, Deacon Wm. P. Caton, of Plainfield, Illinois. It is said that the Judge had some interesting evergreens which appeared to be affected by an unhealthy influence, causing a suspension of growth and withering of branches here and there, until such branches died. So the process went on, terminating after a little time in the death of the trees. In this way he had lost some valuable specimens. At length a very fine and favorite evergreen was similarly attacked. He felt, of course, annoyed by the destructive process, and especially reluctant to lose this particular tree. Probably calling to his recollection something analogous to what I have referred to above, he resolved to try the efficacy of galvanism to reinforce the vitality of the shrub. Having a telegraphic wire extending from the main line in Ottawa to his own residence, he availed himself of this facility, and caused a wire to be passed among the roots of this tree in such a way as to bring the galvanic current to act upon them. It was not long before he saw, to his delight, a new set of foliage starting from the twigs, and after a little time the tree was again flourishing in all its beauty. The electric current had evidently imparted to it a fresh vitality.
To insure the success of such an experiment, a proper regard to polarization must be had, such as is taught in the system presented in this book. There may not have been any attention to this matter in the case just related; but if not, the Judge must have stumbled upon the correct application of poles. To have brought the roots under the influence of the wrong pole would have made sure the death of his tree.
Now, although, if taken by themselves, such experiments could not be regarded as conclusive in favor of the electric nature of vegetable vitality, notwithstanding that this theory best explains the phenomena; yet, when considered in connection with the fact that the nervous fluid of the animal kingdom is evidently a modification of electricity, and probably constitutes the vital force of the animal, the theory of its identification, under another modification, with the vital principle in the vegetable kingdom also, as deduced from experiments like those just adverted to, receives strong confirmation, and is now, I believe, being adopted by many of the best philosophers of the age.
EXTENT OF ELECTRIC AGENCY.
When we have settled upon the position that the electricity of the heavens and of the artificial machine are identical, and that their identity is essentially one with galvanism, magnetism, the electro-vital fluid of animal and the life-force of the vegetable kingdoms, it requires no extravagant imagination, nor remarkable degree of enthusiastic credulity, to suppose that all the forms of physical attraction and repulsion are due, under God, to the diversified modifications of the same all-pervading agent—Electricity. Indeed, for myself, I feel no hesitation in expressing it as my belief that electricity, in one phase or another, and controlled only by WILL, is the grand motive-power of the universe. I believe that, in the form of electro-vital fluid, the great Creator employs it as His immediate agent to carry on all the functions of animal life; and that, in respect to voluntary functions, He subordinates it as a servant to the will of the creature, to effect such cerebral action and such muscular contractions as are demanded by the creature's volitions. I am disposed to think that, by the omnipotent power of His will, He controls and uses electricity, in its various modifications, as the immediate moving-force by which He accomplishes all the changes in the physical universe. It is fast becoming a generally-received opinion among modern savans, that every body in nature is really magnetic, more or less; and that all visible or sensible changes are but the result of changing poles. Chemical affinities and revulsions are believed to be only the more delicate forms of electrical attraction and repulsion; the ultimate particles of matter, no less than matter in masses, being subject to the control of electrical laws. The imponderable agents, light and caloric, under the ingenious tests of scientific scrutiny, are beginning to give some very decided indications of being simply electric phenomena. Indeed, the doctrine or theory that supposes caloric to be simply atomic motion is even now being very generally accepted by the scientific world. And that motion in the atoms of a body which causes in us the sensation of heat is probably electric motion. And permit me to observe that, though the operations of nature seem, at first thought, to be wonderfully complex and mysterious, yet if the views here presented be correct, the marvel is changed; and we are brought to a profound admiration of the simplicity of the means by which the Almighty conducts His material operations. A single agent made to perform processes so infinitely numerous, diversified and apparently complex! How amazing! Simplicity in complexity!—majestic, like the mind of God.