A new manual of the elements of astronomy, descriptive and mathematical .. (1868)
Kiddle, Henry, 1824-1891 · New York, Ivison, Phinney, Blakeman & co.; Chicago, S.C. Griggs & co. · leaf 96
of the earth ? Illustration ?6. What are the exact dimensions of the earth ? 131. What does the spheroidal figureof the earth cause ? a. Explain how precession is caused ? THE EARTH 91 the sun and moon acts obliquely upon it, and thus tends to draw theplanes of the equinoctial and ecliptic… … Thus (Fig. 60) the attraction of the sun, acting obliquely upon the protu-berance, or excess of matter, at E and E, tends to draw it toward the planeof the ecliptic; and this it would finally accomplish were the earths rota-tion suspended; so that the plane of the equator would be made tocoincide…
Astronomy
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