Smith, Hamilton Lanphere, 1819-1903. [from old catalog] · Cleveland, M. C. Younglove and company · leaf 86
(Fig. 1). (Fig. 2). glass, its back being towards the eye, and C the horizon glass, andD E the horizon, seen almost as plain in the silvered portion of C,as through the transparent part. If the glasses are all rightly ad-justed, then, even if the position of the quadrant be altered, as inFig. 2,… … a space equal to that moved over by the index, and if a star shoulcthappen to be just so many degrees, or parts of a degree, above 84 THE WORLD. the horizon, as the index had been moved, and as shown at a, it
Astronomy · Meteorology · Geology · Paleontology
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