Colour : a handbook of the theory of colour (1916)
Hurst, George H. (George Henry) · London : Scott, Greenwood · leaf 38
sed between the two bundles of glass plates its reflection on the second bundle will be more or less coloured, and on rotating the second bundle of plates it will be found that the colour changes according to the position of the bundle. If instead of the selenite a piece of rock crystal cut… … FIG. 12. known as the polariscope. A simple form of this instru- ment is shown in Fig. 12 ; while Fig. 13 is a diagrammatic representation of it. A bundle of glass plates, A, rests on the bottom of the box, this represents the polariser ; light at the requisite angle is allowed to fall on this…
Color
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