Irving, [Christopher], d. 1856. [from old catalog], Ortmann, Anselm. [from old catalog] · Baltimore, Md., New York, J. Murphy company · leaf 56
Fig. 15.—Spring Tide. Q. 12. Why is the tide-raising force of the moongreater than that of the sun ? A. Because the moon is so much nearer to theearth. Q. 13. What fraction of the moons tide-raisingforce is the suns tide-raising force ? A. It is about f of the moons tide-raising force. Q. 14. How…
Astronomy
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