Smith, Hamilton Lanphere, 1819-1903. [from old catalog] · Cleveland, M. C. Younglove and company · leaf 21
this would be down to an observer at B. Hence we mustlearn to consider up, as away from the earth, and down as thedirection to its centre, and therefore not absolute directions inspace but only relative terms. Now as the sun and the stars areobserved after certain regular intervals to appear in the… … *B an engraving which represents the earth as the centre, and the MOTION OF THE SUN. 19 sun revolving around it in a circular orbit, and the stars still fur-ther beyond. Now on the supposition that this is the true systemof the world, suppose the sun revolving in the direction A B, andan observer…
Astronomy · Meteorology · Geology · Paleontology
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