Six lectures on light : delivered in America in 1872-1878 (1886)
Tyndall, John, 1820-1893 · New York : D. Appleton · leaf 152
n ourpower to determine instantly, by means of a plate oftourmaline, the directions in which the ether-particlesvibrate in the two beams. The double refracting sparmight be placed in any position whatever. A minutestrial with the tourmaline would enable you to deter-mine the position which yields a… … (B is the hi-refractlng spar, dividing the incident light into the two beams o and e,a is the mirror.) The beam is here reflected laterally. When the reflection la up-uardt, the other beam is reflected as shown in flg. 35. that if they be suitably received upon a plate of glassat the polarizing…
Light
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