The microscopist : a manual of microscopy and compendium of the microscopic science : micro-minerology, micro-chemistry, biology, histology, and pathological histology (1877)
Wythe, J. H. (Joseph Henry), 1822-1901 · Philadelphia : Lindsay & Blakiston · leaf 45
ent colors, according to the thickness of the film. Ifone be red, the other will be green, these colors beingcomplementary. By using the analyzer one of these raysis alternately suppressed, so that on revolving the appa-ratus the green and red rays appear to alternate at eachquarter of a circle.… … Diukers S^lenite Stusre. supplied, giving the blue, purple, and red, with their com-plementary colors, orange, yellow, and green. By thiscombination all the colors of the spectrum may be ob-tained. The selenite disks generally have engraved onthem the amount of retardation of the undulations…
Microscopy · Histology · Microorganisms
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