Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 266
employment of a blackened glass reflector for ananalyzer is attended with some difficulty, on account of thenecessity of changing the position of the eye for each new * With black glass reflectors employed as polarizer and analyzer, theextinction of the light is net quite complete, even when they… … Glass Strained by Pressure. These plates will be used as shown in Fig. 253, the lightpassing through them to the eye instead of being reflected. Fig. 255.
Physics · Lantern projection · Electric apparatus and appliances
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