School Atlas of Astronomy: Comprising, in Twenty-one Plates, a Complete Series of Illustrations of the Heavenly Bodies

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William Blackwood and sons, 1869 - 70 strani

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Stran 17 - The squares of the periods of revolution of any two planets are proportional to the cubes of their mean distances from the sun.
Stran 70 - Director-General of the Geological Survey of Great Britain and Ireland ; and JAMES NICOL, FRSE, FGS, Professor of Natural History in the University of Aberdeen. Constructed by ALEX. KEITH JOHNSTON, FRSE, &c., Geographer to the Queen, Author of the "Physical Atlas,

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