Slate

Definition and stakes

University of Pennsylvania. Seybert Commission for Investigating Modern Spiritualism,  Preliminary Report of the Commission Appointed by the University of Pennsylvania to Investigate…

“ Slade winks rapidly three or four times in a sort of mental abstraction, I suppose, while thinking out an answer, but he always breathes freer when this crisis is passed, and the violent convulsions are over, which attend his hurried writing and the re-turning of the slate. His eyes can now be fixed in turn on each of his sitters, and he can rest a minute or two. (One one occasion I saw the slate as he held it between his index and second finger, his index-finger and thumb held the slate pencil.) ”
Source: Gutenberg

Various,  Popular Science Monthly (1889)

“ Slade, whose mediumship has convinced many of the most eminent believers in spiritualism, including the famous Zöllner coterie, [4] produces communications on a slate held beneath a table, in answer to questions asked in writing or verbally, sometimes openly and sometimes in folded slips of paper. ”
Source: Wikisource

University of Pennsylvania. Seybert Commission for Investigating Modern Spiritualism,  Preliminary Report of the Commission Appointed by the University of Pennsylvania to Investigate…

“ In broad daylight, a slate perfectly clean on both sides was, with a small fragment of slate pencil, held under a leaf of a small ordinary table around which we were seated; the fingers of the juggler's right hand pressed the slate tight against the underside of the leaf, while the thumb completed the pressure, and remained in full view while clasping the leaf of the table. Our eyes never for a fraction of a second lost sight of that thumb; it never moved; and yet in a few minutes the slate was produced, covered on both sides with writing. ”
Source: Gutenberg

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