Young, Charles A. (Charles Augustus), 1834-1908, Young, Anne Sewell, b. 1871., ed · Boston, New York [etc.] Ginn and Company · leaf 135
well as the most elaborate §182] PHOTOGRAPHY. 121 apparatus. Still, it is generally more satisfactory to look atthe sun directly with a suitable eye-piece. With a small tele-scope, not more than 2\ or 3 inchesin diameter, it is usual to intro-duce a simple shade-glass betweenthe eye-piece and the… … Fig. 44. — Telescope and Screen.
Astronomy · Constellations
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