Electro astronomical atlas ... with explanatory notes, questions and answers (1874)
Spoor, J. W. (Joseph W.) · Albany, N.Y., Weed, Parsons and Company · leaf 58
beginning by thehighest parts of it, ismanifested in thesame manner to thesailors who, from theship, observe theland. The explana-tion is rendered clearin the followingsketch, where thecourse of a vessel,seen in profile, is fig-ured on the convex surface of the sea. (See fig. 21.)As the curvature…
Astronomy
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