The scientific papers of Sir William Huggins (1909)
Huggins, William, Sir, 1824-1910, Huggins, Lady, d. 1915 · London, W. Wesley and son · leaf 34
the spectrum which is photographed is too small sensibly toaffect the results.* The prism is fixed in a position of minimum deviation forH. The lenses are of quartz, cut perpendicular to the axis and plano-convexin form. The lens of the collimator is \h inch diameter, 10 inches focallength. The… … a. Slit plate. h. Tube for collimation. c. d. Quartz lenses. e. Prism of Iceland spar. /. Photographic plate. <j. Bevelled edge. h. Screw for adjustment in focus of mirror. i, k. Shutters of slit. 1. Silver plate with slit. Fig. 6. The wooden frame which receives the photographic backs is made…
Astronomy
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
