I have also heard formidable raps with the two young girls, fourteen and fifteen years of age, who were called the Agen mediums. I observed these mediums at their own home, and I also had them twice at Bordeaux, when on each occasion they remained for nearly a month. The raps produced by them are interesting, but they do not seem to me to be demonstrative. One of these girls obtained raps on the floor under her feet; I verified the apparent immobility of the foot while the raps were being produced. When the two girls were in bed, loud raps were heard near their feet, seemingly given on the wood of their bed. We were able to observe the apparent immobility of the children. Raps were also given on the blankets; we could feel the vibrations when laying our hands on the blankets; the raps appeared to be produced under our hands. I have heard diverse noises with these children in obscurity, but I draw no conclusion therefrom. I found out that they were not always sincere, and that they had a tendency to take advantage of the confidence and friendliness of the people, with whom they were staying. They have simulated some of their phenomena, especially raps in the ceiling. I have never been able to persuade these young girls to experiment at a table with sufficient conditions of light. They were accustomed to go to bed in order to procure their raps. It is true I have heard these raps in daylight, but I consider other conditions were unsatisfactory on these occasions. I regretted exceedingly that these mediums showed so little good-will, for even putting aside the greater part of the suspicious phenomena they produced, there were still some which seemed to be worthy of further examination.
I have touched upon my observation of these children because it is instructive, although it may be negative from my point of view. It shows the inconveniences of a bad method of development. I have noticed that psychical phenomena has a great tendency to repeat itself, to follow a certain routine: they tend to turn round the same axis. The children of whom I have just spoken had been allowed to acquire the habit of going to bed, in order to obtain the sonorous phenomena they appeared to produce. Therefore they were able to obtain them only under those conditions. They have never given me a ‘rap’ by means of a table, and yet, I am inclined to think that they, or at least that one of them, had the constitution necessary for the emission of psychic force.
My failure with the Agen mediums was not altogether devoid of interest, for I gained experience, and experience is only acquired with time, patience, and multiplicity of observations. It is useful to be able to compare good, doubtful, and bad seances.
Among my most doubtful experiences, whose recital may be as instructive as the foregoing, I will choose, for brief discussion, a recent series of seances which I held at Bordeaux. Some of the phenomena I observed seem to me difficult to explain by fraud, especially lights which floated about the seance-room; but the greater part of the motor phenomena was simulated. The personification had the habit of demanding total darkness, and as I was chiefly interested in luminous phenomena, I saw no inconvenience in putting out the lights. The personification, which made this request, was probably the personal consciousness of one of the sitters. As soon as the lights were extinguished, the raps became noticeably louder. Many of them were certainly the work of two of our number—I have not been able to analyse the mental state of these two young men: one of them, who is neurasthenic, acted perhaps unconsciously. Nevertheless, though I observed the whims of these two men with interest and attention, I noticed, at the same time, that raps were forthcoming in total obscurity when I made imperceptible movements, e.g. when I gently blew on the table, or when I pressed the hand of one of my neighbours whose sincerity I could vouch for. There was always this synchronism, which I have already pointed out, between the muscular movement and the rap. Without being able to affirm it absolutely, I think I may say that my co-experimenters were not aware of the slight movements I made with my feet, hand, finger, or breath. In these sittings, otherwise bearing a most suspicious character, there was, therefore, a residue of facts worthy of attentive analysis. I was unable to make this analysis, having shortly afterwards ceased to experiment with the group, which these young men frequented. In some respects I am sorry for it, as the observation of this parcel of truth, and even of the two fraudulent experimenters themselves, was interesting from various points of view.
I will now reconsider the experiments I first touched upon—viz. those conducted in full light—the only ones upon which I establish my opinion. I have indicated as fully as possible the conditions under which I have been able to observe raps. The raps most commonly heard are those given with contact on the table or floor, and then those which are given at some distance from the experimenters.
Sometimes, but more rarely, I have heard them on cloth, on the medium’s or sitters’ garments, etc. I have heard them on pieces of paper placed on the seance table, on books, on the walls, on tambourines, on small wooden articles, and particularly on a planchette which was used for automatic writing. I have also observed very curious raps with a writing-medium:—when he wrote automatically, raps resounded with extreme rapidity at the end of his pencil. I can affirm that the pencil did not strike the table, for several times I very carefully put my hand on the opposite end of the pencil, and I was then able to verify that the sound was produced at the point of the pencil, the pencil remaining all the time, steadily and firmly, on the paper—the raps resounded on the wood of the table, and not on the paper. In this case, of course, the medium held the pencil in his hand.
Consequently, raps may be given upon various articles, with or without contact, and even at a certain distance from the medium. I have observed some which burst forth as far as nine feet away from the medium. I have not obtained any at a greater distance than nine feet, and it is not often I have been able to observe them at that distance. One of the most curious cases I have observed is the following:—I was experimenting in a room where there was a screen. The table was about nine feet away from this article. Very clear, distinct raps resounded on the floor behind the screen. It was broad daylight, but the raps were given on the shaded side of the screen.
I have frequently heard raps in the seance-cabinet, the medium seated in front of the curtains as indicated in section [ii.] chapter 1. Thus placed, raps are easily obtained behind the medium: they may be given on the floor, the wall, or on the articles placed in the cabinet. They are also frequently given outside the curtains, on the medium’s chair, or on the floor under him. When raps are obtained, it is very easy to study them by varying, in many satisfactory ways, the conditions of the experiment. This is one of the phenomena whose reality has been the most clearly demonstrated to me.
The variety of form the raps may take is not less than the diversity of objects upon which they may be given, or the places in which they may be heard. The sound of the usual rap, on a table, reminds you of the tonality of an electric spark, while of course there are many variations.
In the first place, we must note that the tonality of raps differs according to the object upon which they resound. It is easy to recognise by the sound if the raps are given on wood, paper, or cloth. This is an interesting demonstration, because it indicates that the sound is produced by the vibrations of the material substance. The material molecules of the object struck are therefore put into movement; they are not, however, always disturbed in the same way, for the tonality of the raps given on the same object is susceptible of great variety. The raps, instead of being sharp and short, may be dull and resemble the muffled sound of impact with some soft body: they may resemble the slight noises made by a mouse, a fret-saw, or the scratching of a finger-nail on wood or cloth: they may affect the most diverse modalities. Their rhythm is as varied as their tonality.