Lockyer, Norman, Sir, 1836-1920, Seabroke, G. M. (George Mitchell), 1848-1918 · London, Macmillan and co. · leaf 452
Fig. 191.—Solar Spectroscope (Grubbs form). These are shown in Fig. 195, e is a reflecting prism,and F is another movable reflector to reflect the light CHAP. XXIX.] THE CHEMISTRY OF THE STARS. 429 from a spark passed between two wires of the metalto be compared, and to tlirow it on the prism, which … Fig. 195.—Side view of Spectrcscope, showing the arrangement by which thelight from a spark is thrown into the iustrumeut by means of the reflectingprism, e, by a mirror F. (Muggins.)
Astronomy · Telescopes
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