I think that in a great number of cases this sensation is purely subjective, but—as with cool breezes—it does not always seem to be so. It generally accompanies the production of phenomena relatively feeble and continuous, such as raps and gliding movements. I have not always felt it when strong phenomena were forthcoming; but then I was not always in contact with the medium, and often, though I did not feel anything, the medium mentioned having other curious sensations, which I shall speak of presently. Besides, the chain must be formed in order to perceive this sensation of a current with all the accompanying features I have just described; but it is not necessary for the medium to be in the circle. This sensation can also be felt by simply leaning the hands on the table without joining them. This case bears an analogy to the preceding one, if we suppose that the table, serving as a condenser for the emitted energy, suffices in itself to establish a sort of indirect contact with the experimenters. And things seem to happen as though this were really the case.
If that be so, we can at once understand the relation, which appears to exist between the mediate or immediate contact of the observers’ hands and the sensation of a ‘current.’ There is something here which is very obscure and very delicate to analyse, but which, if the fact be real, appears to me to indicate the circulation of some thing or other. It is probable that what circulates is precisely the energy used for the production of the abnormal facts I am relating. True, this is only a hypothesis, and I again beg my readers’ pardon for having allowed myself to be drawn into the field of conjecture. I hasten to return to facts.
If the sensation of the ‘passage of the current’ be feeble, it is not so with its abrupt interruption. When, for some cause or other—a slight discussion between the operators, the medium’s emotion, a sudden breaking of the chain—the sensation of the passage of the current is interrupted, the interruption is easily felt. It may even cause a sensation of sudden indisposition, if the interruption coincide with the phenomenon in course of production. This is a curious fact, and one easily observable. The sensation of the breaking of the current is distinctly felt; and it is this which makes me think, that the feeble impression of the passage of the current is not altogether imaginary.
The sensitiveness of different experimenters varies very much. Some are most susceptible to these influences, others are not at all so, or only very slightly. I remember having recently assisted at a seance with one of my friends, a man well known in the fencing world. My friend, although he is still young, had an attack of apoplexy some years ago. He recovered, and has only retained a very slight hemiparesis of the right side. Medically, he comes under the category of hemiplegics. He appears to be extremely sensitive to the impression I call ‘the passage of the current.’ He compares it to the sensation, which the passage of an electric current produces upon him. He assured me that his right arm was affected by it and benumbed. He told me that he experienced a similar effect when passing near powerful dynamos; he could not, for example, stay long in the gallery of machines at the French Exhibition in 1900, because of the generators of electricity which were installed therein. He had a disagreeable sensation in the right arm; the uneasiness extended from the arm to the neck, and he was obliged to leave the neighbourhood of these electrical machines. In the course of the seance—a very uninteresting one, by the way—he declared that he felt an identical sensation, and he was even compelled to leave the circle. I relate this observation, for the person who made it is an intelligent man, and quite capable of correctly analysing his own sensations. It is needless to add that he was cool and self-possessed, and observed everything free from bias, one way or another.
The medium’s sensations are generally much more accentuated than those of the sitters. Sensitives say, they distinctly feel the passage and the interruption of the current; I think it is a question of degree: their sensations differ from the sensations of other experimenters only in degree. There is, nevertheless, a category of sensations, which is almost exclusively felt by the medium when a fairly strong movement is forthcoming: this is the sensation of a sudden emission of force. One of the most intelligent mediums I have come across describes it, as a sensation of cramp in the epigastric region; it seems to him at times as though he were on the verge of fainting. I have indicated a similar sensation, which I myself once felt during a levitation obtained with Eusapia Paladino. I felt the same thing on other occasions, but not with the same intensity. I remember, for example, an experiment made under the following conditions: We were holding a seance on a winter’s evening; the light on this occasion, though feeble, was sufficient. We had covered the table with a woollen cloth which fell over our knees, and protected us slightly from the cold. Upon the seance table we had placed a smaller one upside down. We touched the edge of the smaller table. Having noticed that the small table appeared to be trying to raise itself on one side, I endeavoured to increase the amplitude of the movement by violently contracting the muscles of my arms and legs. While I made this intense effort, we saw the little table slowly lean forward, and turn itself over without coming into any contact whatever with ourselves. When the phenomenon was accomplished, I felt suddenly very tired. It is possible, that the cause of this fatigue was simply the violent effort I had made to contract my muscles; still, I point out this observation—which others of the same order appear to confirm—because the correlation between the effort, and the sudden sensation of fatigue is less regular than the connection between that sensation and the phenomenon. Whatever may be the intensity of the effort, the fatigue is felt with less abruptness and in a lesser degree, when the phenomenon is not realised. I may add, that this sensation only appears to me to accompany telekinetic and certain luminous phenomena. It does not, as a rule, accompany raps or automatic manifestations; the fatigue determined by these phenomena makes itself felt progressively and more tardily. I will return to this however.
(d) The experimenters, and particularly the medium, sometimes speak of a sensation, which they compare to that which is felt, by coming into contact with a spider’s web. This appears to be rarer than the above-mentioned sensations, and, so far, I have not noticed that it was manifested with certain phenomena rather than with others.
This sensation of spider’s web is felt about the hands, the face, and at times the back and loins.
I cannot give any other indication upon this curious sensation.
(e) I have already said a few words about the sudden sensation of fatigue, which is felt when an important phenomenon occurs. I have carefully examined the state of the assistants before and after the seances, and I have invariably noticed that most of the experimenters were tired after a successful seance. This fatigue appears to be in fairly exact proportion to the results obtained. I speak of parakinetic and telekinetic results; for it must be noted that the fatigue determined by these abnormal movements is not identical—at least in the case of the medium—with the fatigue which other phenomena appear to occasion.