Lockyer, Norman, Sir, 1836-1920, Seabroke, G. M. (George Mitchell), 1848-1918 · London, Macmillan and co. · leaf 339
ation. The wheeled hutunder which it usually stands, a sort of waggon sevenmetres high by nine long and five broad, is pushed backtowards the north along double rails. The observingstaircase has been fitted to a second system of rails,which permits it to circulate all round the foot of… … Fia. 145.—Great Silver-on-Glass Eeflector at the Paris Observatorj^ ciiAr. XX.] METHODS OF MOUKTJNG LARGE TELESCOPES. 317 the eyepiece. This eyepiece itself may be turned roundthe end of the telescope into whatever position is mosteasily accessible to the observer. The tube of the telescope, 7*30…
Astronomy · Telescopes
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
