A practical treatise on the use of the microscope, including the different methods of preparing and examining animal, vegetable, and mineral structures (1848)
Quekett, John, 1815-1861 · London, H. Bailliere · leaf 257
t is, a beam oflight has acquired the property of sides, on two of which itcan, and two of which it cannot, be reflected; and as theseproperties bear some analogy to the poles of a magnet, a rayof light so modified is said to be polarized. In the case ofthe Iceland spar, the polarization is… … Fig. 137. D C, having at one end a plate of glass A capable of beingturned round an axis, so that it may form different angles withthe axis of the tube; another tube, C a little smaller than D,carrying a similar piece of glass B, is made to fit into it,so that by turning either of the tubes, the…
Microscopy
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