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 365
ason a reenforcement of thetransmitted light likewise—a result which would hardly be in conformitywith the law of conservation of energy. Observation shows that the con-trary is the case, the reenforcement of a color reflected from a given, pointalways corresponding to a weakening of the color… … Fig. 212. NATURE OF LIGHT. 349
Physics
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