There is no need to point out the object of the above suggestion. From the special point of view of the observation of material facts, the movement of a table upon which the hand rests means nothing at all. I look upon these movements as loss of time; they are sufficiently explained by our own unconscious and involuntary muscular contractions. The phenomenon is only worthy of a serious man’s attention when it is produced without contact, or without sufficient contact; as, for example, when the table is completely raised from the ground, the sitters’ hands resting on top of the table all the time. It is better not to experiment than to lose one’s time in observing movements with contact, unless, of course, we are seeking to analyse the tenor of typtological messages. I strongly recommend most carefully avoiding the production of automatic movements. I have excellent reasons for believing, that the agent which produces telekinetic phenomena only realises them, if it has accumulated sufficient force to have acquired a certain given tension. I have already pointed out the close connection—identity perhaps—between this agent and that which causes our muscles to contract; further on I shall indicate experiences which give weight to this impression; at present it suffices to mention it, to understand why I so earnestly recommend sitters to avoid yielding to more or less subconscious movements from the very outset. If, as I think, the energy which our nervous system elaborates is closely connected with that energy, whose effects are seen in telekinetic phenomena, it is probable that it will only produce these curious effects, in proportion as it is able to acquire a sufficient tension for its emission. My knowledge of physics is too rudimentary to allow me to draw precise comparisons between this force and electricity. Nevertheless, it has seemed to me to present some analogies with electricity, although the two are certainly not identical; but the analogies are, perhaps, sufficient to enable me by a comparison to make my meaning clearer. An electrical conductor, charged with a given amount of electricity, will have an electrical density of σ; if the amount increases, this density will be σ´, and we will have σ´>σ; the tension in the first case will be T = 2πσ², in the second T´ = 2πσ´²; T´ will be greater than T. The conductor will remain charged, as long as the tension does not exceed the resistance which the surroundings offer to the emission of electricity; as soon as this resistance becomes inferior to the tension, there will be emission of electricity.