Lessons in astronomy including uranography. A brief intoductory course without mathematics (1896)
Young, Charles A. (Charles Augustus), 1834-1908 · Boston, London, Ginn and company · leaf 191
Fig. 50. — Atmosphere of Venus as seen during aTransit. (Vogel, 1882.) testations on the earth, though it is impossible to give a certainexplanation of them as yet. 249. Surface-markings, Rotation, etc.—As has been said,Venus is a very unsatisfactory telescopic object. She pre-sents no obvious…
Astronomy
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