Proctor, Richard A. (Richard Anthony), 1837-1888 · New York, A.C. Armstrong and son · leaf 288
r size ofthe cot, but that he does know in some way that the 276 TRANSITS OF VENUS, dove flies just midway between the window and thecot; then it is perfectly clear that the distance a ^between the two rows of openings is exactly the sameas the distance A B between the two windows-bars; sothat our… … as shown at the side, then C (T is exactly one yardin height. Thus we have here a case where two observers, with-out leaving their window, can tell the size of a distantobject. And it is quite clear that wherever the dove may passbetw^e.en the window and tlie house, the observers will TRANSITS OF…
Astronomy
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