Letters on natural magic, addressed to Sir Walter Scott (1832)
Brewster, David, 1781-1868 · London : John Murray · leaf 108
88 LETTERS ON NATURAL MAGIC. made, and the effect upon the spectators would be quite overpowering*. The lifeless head might then be made to recover its vitality, and be safely repla- ced upon the figure. If the head A of the living Fig. 8. A … object A B, Fig. 7, is covered with black cloth, the head of a person or of an animal placed above A might be set upon the shoulders of the figure A B by the refraction of a prism. When the figure a b, Fig. 8, is of very small di- mensions, as in the magic lantern, a small prism of glass would…
Scientific recreations · Magic
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
