Herkomer, Hubert von, Sir, 1849-1914 · London : A. Constable and company, limited · leaf 224
t been done inthat direction. I find it rather difficult to describe a mechanical devicein words. However clearly given, much depends also on208 MY SCHOOL AND MY GOSPEL the readers mind, which, if not of a mechanical turn, cannoteasily follow such descriptions. 1 have therefore appendeda drawing of… … the man attending it gently pulls the one wire, the boxmoves upwards or downwards, the latter for the returnto the original position for the next performance. Thedrawing of the moon-box itself shows the position of thethree incandescent lamps, and the lens with tissue papercovering. Upon this paper…
Art
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