Letters on natural magic, addressed to Sir Walter Scott (1832)
Brewster, David, 1781-1868 · London : John Murray · leaf 175
, suffered the same change from the varying density of the air, and therefore, the castle and the hill were equally elevated and re- tained their relative positions. The reason why the image of the castle and the hill appeared erect was, that the rays from the top and bottom of the castle had not… … better understood from the annexed diagram, which represents the actual progress of the rays, from a ship S P, concealed from the observer at E by the
Scientific recreations · Magic
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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