"I call 'Ready?' The percipient says, 'Yes.' We have been drawing at the same time in different rooms. On returning to the study I compare the drawings and see with astonishment that Fräulein A. has drawn a serpent. Even the open mouth and the thickened end of the tail in the reproduction agree with the original. The experiment has succeeded in its essential part, and as regards strictness of conditions I think it quite unassailable. Unconscious suggestion is absolutely excluded, when agent and percipient are in different rooms. Any corresponding association of ideas seems to me also impossible, for the idea of the staff of Æsculapius first occurred to me in the other room. In the study there is no object which could have led up to the idea—no indication which could have pointed out the way."
The percipient had, in fact, drawn a spiral figure apparently intended to represent a serpent.
The two other experiments here referred to were performed in immediate succession, and under precisely similar conditions, the time allowed in each case being about two minutes.
In the second experiment the agent drew an arrow; the percipient drew another spiral, with intersecting loops. In this case, as the agent points out, the original idea of the serpent appears to have persisted in the percipient's mind.
In the third experiment the agent drew a triangle inscribed in a circle; also two diameters to the circle, crossing each other at right angles, the vertical diameter bisecting the upper angle of the triangle. The agent writes:—
"The drawing was done in the following way. I began with the triangle, and then drew the perpendicular on the base. The idea that thereupon occurred to me, that the figure was too simple, induced me to add a circle and to prolong the perpendicular to the circumference; finally I added the horizontal diameter. The percipient was drawing at the same time at table b, sitting on chair 5, with her back to the closed door of communication. Question from the next room, 'Are you ready?' Answer, 'Stop,' as I am about to open the door. Then, 'Now.' I open the door and enter the room. The two drawings agree except that the circle and the horizontal diameter are wanting. Even the perpendicular of the triangle, which has become obtuse angled, is prolonged beyond the base, just as in the original. This prolongation and addition of the perpendicular cannot be explained by any tendency of ideas to recur (diagram-habit). Only the fact that a triangle was drawn might, taken alone, be explained in some such way."
Figures of the original diagrams in this case are given in the Proceedings of the S.P.R.
Some experiments with diagrams, conducted in July 1890 by Drs. Grimaldi and Fronda, have been published by Lombroso.[25] The subject was a young man of twenty, subject to hysterical attacks and spontaneous somnambulism. The first experiments were made in the hypnotic state, with numbers, and met with only moderate success. Later, however, the trials were made in the normal state. At the first sitting diagrams were tried. The subject had his eyes firmly bandaged and his ears plugged with cotton wool. The diagrams were drawn at a certain distance (ad una certa distanza) from the subject, and behind him. Under these conditions the first five experiments were completely successful; the subject reproduced in turn a rhomb, a circle, a triangle, an irregular pentagon, shaped something like the profile of a barn, and a cone. The next experiment failed, only a formless scribble being obtained. The subject was much exhausted, and fell into a semi-cataleptic state as soon as the bandage was removed.
Some success was obtained in later sittings, in the guessing of names and in the execution of mental commands. But the experiments had soon to be abandoned, on account of the health of the percipient.
Other experiments with diagrams, in addition to those above referred to, will be found in the Proceedings of the S.P.R., vol. i. pp. 161–215, by Mr. Gurney, the writer, and others; vol. ii. pp. 207–216, by Mr. W. J. Smith. The paper on Thought-transference, etc., by Professor C. Richet, Proceedings, vol. v. pp. 18–168, should also be consulted in this connection.
CHAPTER III.
EXPERIMENTAL TRANSFERENCE OF SIMPLE SENSATIONS WITH HYPNOTISED PERCIPIENTS.
As already stated, the hypnotic state offers peculiar facilities for observing the transmission of thought and sensation. It is possible that the superior susceptibility of the hypnotised percipient is in some measure due simply to the quiescence and freedom from spontaneous mental activity very generally induced by the state of sleep-waking. There are indications, moreover, that the hypnotic state itself may present in many cases a specialised manifestation of that rapport which would appear to exist generally between Agent and Percipient in thought-transference. But the close association of the telepathic activities with the consciousness which emerges in hypnotism and allied states suggests an explanation of a more general kind, and may possibly throw light on the evolution of the faculty itself.[26] However this may be, there can be no question that the most remarkable results in experimental telepathy so far recorded are those given in this and the following chapters with hypnotised percipients.
Transference of Tastes.
The fact that notwithstanding this recognised facility comparatively few observers have experimented with hypnotised subjects, except in one or two directions, calls for some explanation. There are, indeed, innumerable records of the transmission of sensations of taste and pain in the hypnotic state. The uncertainty attending any experiment in the first direction with subjects in whom special exaltation of any particular sense is not merely possible, but even under the conditions of the experiments probable, has been already pointed out. Such trials, conducted with a variety of substances nearly all of which are in some degree odorous, must necessarily lie under suspicion. To the references quoted in the preceding chapter (p. 21) and to the experiments of this nature recorded in the Proceedings of the S.P.R.[27] it will suffice here to add one further instance, in which the hypothesis of hyperæsthesia seems hardly an adequate explanation of the result. In a communication to the Revue Philosophique in February 1889, Dr. Dufay quotes the following passage from a letter received by him from Dr. Azam, the veteran historian of Félida X.:—
No. 10.—By DR. AZAM.
"I myself, and I believe many other medical men, have observed cases of this or of a similar nature. I will quote two, in which I think I took all necessary precautions before being convinced of their truth.
"1st. About 1853 or 1854, I had under my care a young woman with confirmed hysteria: nothing was easier than to put her to sleep by various means. I consider myself entitled to state that, while holding her hand, my unspoken thoughts were transferred to her, but upon this I do not insist, error and fraud being possible.
"But the transmission of a definite sensation seemed to me to be absolutely certain. This is how I proceeded: Having put the patient to sleep, and seated myself by her side, I leaned towards her and dropped my handkerchief behind her chair; then, while stooping to lift it up, I quickly put into my mouth a pinch of common salt, which, unknown to her, I had beforehand put into the right-hand pocket of my waistcoat. The salt being absolutely without smell, it was impossible that the patient should have known that I had some in my mouth; but as soon as I raised myself again I saw her face express disgust, and she moved her lips about. 'That is very nasty,' she said; 'why did you put salt into my mouth?'
"I have repeated this experiment several times with other inodorous substances,