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 409
rom O an upright but elongated image AB of AB due to the 392 LIGHT. pencils OCA, ODB, is seen, and also an inverted image AB due to thepencils OEA, DFB. This is one of several types of atmospheric mirage.Other types showing distortion or displacement of objects are due to localdifferences of… … -- —_>^ A Fig. 271. through sheets of glass with irregular surfaces, or non-homogeneous mix-tures of liquids, such as water with an excess of salt crystals at the bottomof the vessel, or with alcohol above and imperfectly mixed with it. When the sun is near the horizon, the rays reaching the eye…
Physics
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