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 146
two positions in whichno light will pass through the prisms at all; if this does nottake place, and only part of the field of view is darkened,then, either by turning the arm which carries the compoundbody or the screw in the plate that bears the polarizer, thetwo can be made to obscure each other;… … 106 PRACTICAL TREATISE ON THE MICROSCOPE. property of bending the rays of light that have traversed thepolarizer, and of causing them to pass through the analyzer;according to the thickness of the crystalline plate, so willeither a green or red colour prevail. The cause of theseappearances, and the…
Microscopy
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