Magic; stage illusions and scientific diversions, including trick photography (1897)
Hopkins, Albert A. (Albert Allis), 1869-1939, Evans, Henry Ridgely, b. 1861 · London : Low · leaf 141
ined, and been returned to tbe operator, the latterlays it upon the first, and both are then surrounded by the rubber band. It is then that the operator holds up the slates with the left hand, of whichone sees but the thumb, while upon the posterior face of the second slate thenail of his middle… … SlIIlIT SLATES. CONJURING TRICKS. 125 taking care this time that the non-prepared slate shall be beneath (Fig. 2).It is upon it that the black cardboard rests; and the other slate, on beingraised, shows the characters that it bears, and that are stated to have beenwritten by an invisible spirit…
Magic tricks
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