Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 433
are called dextrogyrate,while others cause rotation to the left, and are called levogyrate. Many other substances, including some liquids and solutions,also possess this property, though to a much less degree. Thus,while a plate of quartz 1 mm thick rotates the plane of red lightnearly 18°, the… … THE SACCHARIMETBR. 415 SO adjusted that the field is dark. The substance to be examinedis then inserted between them, and the analyzer is turned till thefield is again dark; the angle thus turned through is the rotationproduced by the substance. Liquids and vapors are studied byenclosing them in a…
Physics
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