Researches in the phenomena of spiritualism (1874)
Crookes, William, 1832-1919 · London : J. Burns · leaf 37
furnished with an automatic register, D. The balance issuspended from a very firm tripod support, E. The following piece of apparatus is not shown in thefigures. To the moving index, o, of the spring balance, a Fig. 3 … fine steel point is soldered, projecting horizontally outwards.In front of the balance, and firmly fastened to it, is a on Psychic Force. 35 grooved frame carrying a flat box similar to the dark box ofa photographic camera. This box is made to travel by-clock-work horizontally in front of the…
Spiritualism · Parapsychology
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