Lockyer, Norman, Sir, 1836-1920, Seabroke, G. M. (George Mitchell), 1848-1918 · London, Macmillan and co. · leaf 318
Fig. 134.—The 40-feet at Slongh. Lord Rosses six-feet reflector again is mounted in adifferent manner. It is not equatorially mounted; thetube, supported at the bottom on a pivot, is moved bymanual power as desired between two high side walls,carrying the staging for observers, and so allowing the… … 295 STARGAZING : PAST AND PIIESENT. [book y. telescope a small motion in rigbt ascension of aboat twohours. Our amateurs then may be forgiven for still
Astronomy · Telescopes
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