Duff, A. Wilmer (Alexander Wilmer), b. 1864, ed, Guthe, Karl Eugen, 1866-1915, Hallock, William, 1857-1913, Lewis, E. Percival (Exum Percival), 1863-1925, Goodspeed, Arthur W. (Arthur Willis), b. 1860, Carman, Albert Pruden, b. 1861, McClung, Robert Kenning, 1874- · Philadelphia, P. Blakiston's Son & Co · leaf 489
Fig. 342. 4/0 LIGHT. their refracting edges at right angles to each other the resultantspectrum will usually be a line or smooth curve inclined in direc-tion to the edges of both prisms. If, however, one of the prisms Yt llou.). … Fig. 343. gives anomalous dispersion the resultant spectrum will be brokenand irregular, as shown in Fig. 3, which illustrates the anomalousdispersion of sodium vapor in the neighborhood of the D lines asphotographed by Wood. 542. Selective Reflection. The color of natural objects is pri-marily due…
Physics
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