Letters on natural magic, addressed to Sir Walter Scott (1832)
Brewster, David, 1781-1868 · London : John Murray · leaf 82
62 LETTERS ON NATURAL MAGIC. it may be formed in the centre of the opening EF. Let us suppose this object to be a plaster cast of Fig. 4. … any object made as white as possible, and placed in an inverted position at A. A strong light should then be thrown upon it by a powerful lamp, the rays of which are prevented from reach- ing the opening EF. When this is done, a specta- tor placed at O will see an erect image of the sta- tue at B…
Scientific recreations · Magic
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
