The physical phenomena of spiritualism, fraudulent and genuine; being a brief account of the most important historical phenomena; a criticism of their evidential value, and a complete exposition of the methods employed in fraudulently reproducing the same (1908)
Carrington, Hereward, 1880-1959 · Boston : Small Maynard · leaf 128
Fig. 10 Fig. 11 ;^^Y of Slate-writing Tests 105 finger, a minute fragment of slate-pencil; and, when the slatewas in position, all he had to do was to extend this finger, andto write on the under surface of the slate whatever he desired.This becomes very easy after a little practice. The writingis…
Spiritualism
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