Herschel, John F. W. (John Frederick William), Sir, 1792-1871 · London : Longman, Rees Orme · leaf 121
er * The first three columns of this table are extracted from among thedata given in Professors Airys excellent paper On the Figure of theEarth, in the Encyclopaedia Metropolitana, *I 114 A TREATISE ON ASTRONOMY. CHAP. III. means than simple inspection or feeling, whether theconvexity of its… … now he removed from A, and applied successively toseveral other parts of the surface, taking care tokeep its plane always on a great circle of the globe, ashere represented. If, then, we find any position, B, inwhich the light can enter in the middle between theglobe and plate, or any other, C,…
Astronomy
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