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Experiments in psychical science : levitation, contact, and the direct voice (1919)

Crawford, W. J. (William Jackson), 1880-1920, Crawford, W. J. (William Jackson), 1880-1920. Reality of psychic phenomena, Harry Houdini Collection (Library of Congress) DLC · New York : E.P. Dutton & Co. · leaf 59

An illustration from Experiments in psychical science : levitation, contact, and the direct voice, 1919, leaf 59
W … Fig. 11. and the other to the centre of the pointer). Theclip was insulated from the dial by pieces ofbrown paper. The idea was that when thepointer moved round sufficiently to touch theclip, an electric bell in the circuit would ring.Full details of a similar arrangement are givenin R.P.P., ch.…

Parapsychology · Spiritualism

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