Certainly, the attacks made on Eusapia Paladino by a badly informed press and public are not encouraging to the more highly gifted mediums. I owe it to Eusapia to say that, in my experiments with her, she has always submitted to the exigencies of the most severe test conditions. If she has sometimes given me suspicious phenomena, she did so only under especial psychological conditions.[1]
Though I have not employed any registering apparatus, I have used instruments of weight and measure—particularly a letter-balance—an article as convenient as it is easily employed. Each experimenter can and ought to vary the conditions of experimentation according to his wishes, within the limits which frequent experimentation will very quickly give him. The results obtained must be definite. To be satisfied with approximate results in such a matter would be absolute loss of time.
In concluding my remarks about the paraphernalia of the seance-room, I will give one more recommendation which may seem extraordinary, but which, I have reason to believe, is useful; this is that there should be no metal about the table: it is better to fasten it together with pegs rather than with nails. This is not an absolute condition, however, for I have obtained good results with nailed tables; yet my impression is that the absence of all metal is an element of success. Mediums are sometimes extremely sensitive to metals. Certain sensitives complain of their rings, which seem to make them feel uncomfortable, giving them, at times, a sensation of exaggerated heat. This brings to mind certain facts met with from time to time in our neurotic cliniques.
II. COMPOSITION OF THE CIRCLE
The most important thing in the organisation of a series of experiments is the choice of persons with whom we intend to operate. First of all, it must be remembered that without a medium no phenomena will be forthcoming. The presence of some one, gifted with the power of producing psychical phenomena, is perhaps the only necessary and indispensable condition of their realisation. Therefore, experimentation ought only to be seriously thought of when in possession of that rara avis.
What, then, is a medium? By what distinguishing features can he be recognised? It is very difficult to answer these questions.
I will give the name of ‘medium’ to any person capable of producing any of the phenomena previously mentioned. I adopt the word ‘medium,’ because it is consecrated by custom and has received the precise signification I mention. Some philosophers criticise this definition. Their criticisms are, I think, misplaced. In metaphysics it is easy to give definitions which, though elegant, are founded upon nothing. In physics—I use this word in its etymological and primitive sense—a being can only be defined by its properties. Definitions of this kind state a fact, which is all we can require of them; they serve one purpose, which is to avoid a long periphrase. Any other definition would lead to the supposition, that the veritable knowledge of the cause of the phenomena observed or of the properties recorded, was known; now, it seems to me impossible to affirm the real cause of the facts I have observed. I confine myself to stating them without forming any hypotheses.
A medium is, therefore, a person in presence of whom ‘psychical’ phenomena can be observed. I use this word ‘psychical’ with regret, because it implies a hypothesis.
As a rule it is necessary to experiment with mediums in order to discover them. Their gifts are often latent, and only reveal themselves if conditions favourable to their manifestation are supplied. This is not always the case, and there is generally a chance of coming across a medium when experimenting with persons in whose presence certain irregular abnormal noises are heard, certain movements of furniture are spontaneously produced. Such things are far from being as uncommon as one would think. This assertion may seem paradoxical, but such is not the case.
I have met with good mediums who were ignorant of the existence of their faculties; yet, when I questioned them, I discovered that they frequently heard little ‘raps’ upon the wood of their bed or upon their night-table, without attaching any importance to it. Others have often noticed the displacement of ordinary articles. Sometimes, but more rarely, the facts observed are so intense that the house appears to be haunted. We are often tempted to attribute to fraud the phenomena of haunting. I believe accounts of this nature are not all false, and I shall perhaps try and show this in a future work. We must not reason like one of my friends, a man of vast erudition and superior intelligence, who one day said to me: ‘A little girl from thirteen to sixteen years old is always to be found in haunted houses—as soon as the little girl is taken away the phenomena cease!’ Granted! Things generally happen thus; only the little girl may not be the voluntary cause of the phenomena: she may be the involuntary cause of them, a medium in activity, producing supernormal phenomena of the nature of those observed at spiritistic seances.