Olmsted, Denison, 1791-1859. [from old catalog] · New York, R. B. Collins · leaf 153
f the moon happen ? Whendoes an eclipse of the sun happen ? Were the sun of the samesize with the earth and moon, how would their shadows be ?How if less than these bodies ? How are they in fact? Ex-plain by figure 32 12 138 THE MOON. the sun is vastly greater than either of these bodies*the shadow… … 173. It is found by calculation, that the length of themoons shadow is, on an average, just about sufficient toreach to the earth, but the moon is sometimes fartherfrom the earth than at others. (Art. 166.) When she isnearer than usual, the shadow reaches considerably be-yond the surface of the…
Astronomy
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