iameter, had white paper pasted over theupper part, and around the edge were arranged the letters of the alphabet, together with thewords Yes and No. (Fig. 4). In the centre a small round hole, about half an inch indiameter, was cut, and a pin about three inches long by one-eighth of an inch thick… … Fig. 4.—Dr. Hutchinsons Dial. to any letter. In the centre of my seance table I had cut out a small circular piece (whichI leave in when not wanted), so that spirits might project their hands; the space immediatelybeneath the wood of the table made a sort of camera, which prevented the light…
Eglinton, William, b. 1857 · Spiritualism
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![An illustration from A treatise describing and explaining the construction and use of new celestial and terrestial globes; designed to illustrate ... the phoenomena [sic] of the earth and heavens, and to shew the correspondence of the two spheres. With a great variety of astronomical and geographical problems occasionally interspersed (1766)](https://img.insideoutlibrary.com/img/200/ia-treatisedescribi00adam-166-10.webp)
