Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 232
light that lias been changed in a pecu-culiar manner so as to possess properties different fromordinary light. It may be effected by Reflection, or byDouble Eef raction, and instruments for polarizing the lightare called polariscopes. They are made in several differentforms, some doing the work by… … the angle of 35° 25: the light hreflected from it, apparently un-changed. But if this reflected rayis received by a similar mirrorplaced at the angle of 35° 25 withthe direction of the ray reflectedfrom the first mirror, but so ar-ranged that it can be turned aroundFig. 263. £bat ray^ wnen the…
Physics
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