Austin, Louis W. (Louis Winslow), 1867-1932, Thwing, Charles B. (Charles Burton), 1860-1946, joint author · Boston, Allyn and Bacon · leaf 126
ponds approximately to that ofKirchoff, the sodium (IX) line beingfore use, however, the scale must beby comparison with the Fraunhofer lines. For this purpose aray of sunlight is broughtinto the room in a hori-zontal direction by meansof a heliostat, ,and thecollimator placed in a linewith the… … Fig. 58. A a B C Red. Yellow. E b Gree>~.Fig. 59. H H Blue. Violet. parison with Fig. 59 identify the principal Fraunhoferlines, and plot a curve, using wave-lengths as ordinates,and scale-divisions as abscissas. 114 PHYSICAL M EA S UREM EX T. Exerei8e (>2.— Analysis of metallic salts. Place…
Physics
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