Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 71
Fig. 6s see numerous objects where from the lower stations the skyalone was visible. … Fig. This extension of the horizon would be inexplicable ifthe earth had the form of an extended plane. ASTRONOMY. 55 (3) The curvature of the surface of the sea manifestsitself in a still more striking manner. If we are on thecoast at the summit of a hill, and a vessel appears on thehorizon (Fig.…
Astronomy
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