Newcomb, Simon, 1835-1909, Holden, Edward Singleton, 1846-1914, joint author · New York : H. Holt and company · leaf 30
themidst of extensive plains or at sea,appear to be bounded by circles.This appearance at all points of the niusu-ating the fact that the .« !!• ,.1 portions of the eartti visible suiiace of a body is a geometrical from elevated positions, s, s, ., ., , J. T 1 1 J- 1 S, etc., are bounded by… … Pig. 3. 10 ASTRONOMY. More precise reasons will be apparent later, bnt these willbe sufficient to base our general considerations upon. Ofthe size of the earth we may form a rough idea by thetime required to travel completely around it, which isnow about three months. We find next that this globe…
Astronomy
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