The botanist's companion; or, Directions for the use of the microscope (1860)
Balfour, John Hutton, 1808-1884. [from old catalog] · Edinburgh, A. and C. Black · leaf 15
zing apparatus. In addition to the four holesmentioned as needed to admit the requisite amount of light, the diaphragmis furnished with a fifth hole, into which a Nicols prism may bescrewed, forming the polarizer ; the analyzer being screwed into theupper part of an adapter previously to its being… … Fig. 10. COMPOUND MICROSCOPE. y lens for illuminating opaque objects may be fitted into the hole at thecorner of the stage ; it is so arranged that it can be used in any requiredposition or angle. Among the objects often furnished with the microscopeis a plate of selenite, which, if laid under many…
Botany · Microscopy
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