The phenomena apparently produced by these instruments were astounding, and misled every observer of them; until Dr. Haygarth of Bath proved by a process to which objections was impossible, that they were referable not to metal points, but to the mental condition of those who used them. "Robert Thomas," says Dr. Haygarth in his interesting work, "aged forty-three, who had been for some time under the care of Dr. Lovell, in the Bristol Infirmary, with a rheumatic affection of the shoulder, which rendered his arm perfectly useless, was pointed out as a proper object of trial by Mr. J. W. Dyer, apothecary to the house. Tuesday, April 19th, having everything in readiness, I passed through the ward, and, in a way that he might suspect nothing, questioned him respecting his complaint. I then told him that I had an instrument in my pocket which had been very serviceable to many in his state; and when I had explained to him how simple it was, he consented to undergo the operation. In six minutes no other effect was produced than a warmth upon the skin, and I feared that this coup d'essai had failed. The next day, however, he told me that 'he had received so much benefit that it had enabled him to lift his hand from his knee, which he had in vain several times attempted on Monday evening, as the whole ward witnessed.' The tractors I used being made of lead, I thought it advisable to lay them aside, lest, being metallic points, the proof against the fraud might be less complete. Thus much, however, was proved, that the patent tractors possessed no specific power independent of simple metals. Two pieces of wood, properly shaped and painted, were next made use of; and in order to add solemnity to the farce, Mr. Barton held in his hand a stop-watch, whilst Mr. Lax minuted the effects produced. In four minutes the man raised his hand several inches; and he had lost also the pain in his shoulder, usually experienced when attempting to lift anything. He continued to undergo the operation daily, and with progressive good effect; for on the twenty-fifth he could touch the mantel-piece. On the twenty-seventh, in the presence of Dr. Lovell and Mr. J. P. Noble, two common iron nails, disguised with sealing-wax, were substituted for the pieces of mahogany before used. In three minutes he felt something moving from his arm to his hand, and soon after he touched the board of rules which hung a foot above the fire-place. This patient at length so far recovered that he could carry coals and use his arm sufficiently to help the nurse; yet, previous to the use of the spurious tractors, he could no more lift his hand from his knee than if a hundredweight were upon it, or a nail driven through it—as he declared in the presence of several gentlemen, whose names I shall have frequent occasion to mention. The fame of this case brought applications in abundance; indeed, it must be confessed that it was more than sufficient to act upon weak minds, and induce a belief that these pieces of wood and iron were endowed with some peculiar virtues."
The result of Dr. Haygarth's experiments was the overthrow of Perkins, and the enlightenment of the public as to the real worth of the celebrated metallic tractors. In achieving this the worthy physician added some interesting facts to the science of psychology. But of course his influence upon the ignorant and foolish persons he illuminated was only transient. Ere a few short years or even months were over, they had embraced another delusion—not less ridiculous, but more pernicious.
CHAPTER XV.
IMAGINATION AND NERVOUS EXCITEMENT. MESMER.
At a very early date the effects of magnetic influences, and the ordinary phenomena of nervous excitement, were the source of much confusion and perplexity to medical speculators, who, with an unsound logic that is perhaps more frequent than any other form of bad reasoning, accounted for what they could not understand by pointing to what they were only imperfectly acquainted with. The power of the loadstone was a mystery; the nervous phenomena produced by a strong will over a weak one were a mystery:—clearly the mysterious phenomena were to be attributed to the mysterious power. In its outset animal magnetism committed no other error than this. Its wilder extravagances were all subsequent to this assumption, that two sets of phenomena, which it has never yet been proved are nearly allied, were connected, the one with the other, in the relation of cause and effect, or as being the offspring of one immediate and common cause.
To support this theory, Mesmerism called into its service the old astrological views regarding planetary influence. But it held also that the subtle fluid, so transmitted to the animal life of our planet, was capable of being passed on in greater or less volumes of quantity and intensity. Nervous energy was only that subtle fluid which was continually passing and repassing in impalpable currents between the earth and the celestial bodies; and when, by reason of the nervous energy within him, any one exercised control over another, he was deemed only to have infused him with some of his own stock of spiritual aura. Here was a new statement of the old dream which had charmed the poets and philosophers of buried centuries; and as it was a view which did not admit of positive disproof, it was believed by its excited advocates to be proved.
One of the first British writers on animal magnetism was William Maxwell, a Scotch physician, who enunciated his opinions with a boldness and perspicacity which do him much credit. The first four of his twelve conclusions are a very good specimen of his work:—
"Conclusio 1.—Anima non solum in corpore proprio visibili, sed etiam extra corpus est, nec corpore organico circumscribitur.