Irving, [Christopher], d. 1856. [from old catalog], Ortmann, Anselm. [from old catalog] · Baltimore, Md., New York, J. Murphy company · leaf 44
e yearly orbit at the rate of 18.5 miles a second, themoon travels in its orbit around the earth at the rateof 2288 miles per hour. Q. 8. What is the diameter of the moon?A. The moons diameter is 2160 miles. (Seefigure 9.) Q. 9. How does the moons surface and volumecompare with the surface and… … Fig. 9. Moon Seven Days Old.
Astronomy
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