Olmsted, Denison, 1791-1859. [from old catalog] · New York, R. B. Collins · leaf 19
a continued plane, then the spectator would see all partsof the ship at the same time, as is represented in the an- nexed figure. Fig. 2. … 7. The foregoing considerations show that the formof the earth is spherical; but more exact determinationsprove, that the earth, though nearly globular, is not ex-actly so ; its diameter from the north to the south poleis about 26 miles less than through the equator, givingto the earth the form of…
Astronomy
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