Letters on natural magic, addressed to Sir Walter Scott, bart (1868)
Brewster, David, Sir, 1781-1868, Smith, James alexander · London, W. Tegg · leaf 188
169 CYLINDRICAL MIRRORS. mation of distorted pictures by reflection from cylindrical and conical mirrors. In these representations the orig inal image from which a perfect picture is produced is o ften so completely distorted, that the eye cannot trace i n it the resemblance to any regular figure,… … image is concealed or exposed to view. These distorted pictures may be drawn by strict geometrical rules ; but I have shown in Fig. 11 a simple and practical method of executing them. Let M N be an accurate cylincler made of tin-plate or of thick pasteboard. Out of the farther side of it cut a…
Scientific recreations
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