"Manganese" Quotes from Famous Books
 ... which often give contradictory results with the tensile test, were comparatively pure manganese steels, low in silicon, only exceptionally up to 0.2 per cent., but generally below 0.1 per cent., and with less than 0.1 per cent. of phosphorus and sulphur. On the other hand, rails with a tendency to break or split are low in carbon, with variable proportions of manganese, ...
— Scientific American Supplement, No. 492, June 6, 1885 • Various
... of these is QUARTZ, which is a mineral species, and which contains just silicon and oxygen. That is, it is oxide of silicon. Now quartz is colorless when pure (rock crystal), but it is frequently found colored purple (probably by oxide of manganese) and it is then called amethyst by the jeweler. At other times its color is yellow (due to oxide of iron) and then the jeweler is prone to call it "topaz," although properly speaking that name should, as we shall soon see, be reserved ...
— A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public • Frank Bertram Wade
... four hundred slaves, and owned by an English company who made an enormous profit out of it. I went down it, and, under the guidance of some Cornish miners, I had a try with a pick and succeeded in getting out several nuggets as thick as my little finger. As the vein was principally manganese, we were black all over when we came out of the mine, but a body of negresses came at once to wash us. Another expedition I made into the "camp" initiated me into a sort of sport which was new to me—hunting wild horses with a lasso. After having admired ...
— Memoirs • Prince De Joinville
... process, previously to the application of the metal cyanic, mellonic or other toning baths. Alkalies and alkaline carbonates may also be used to remove the chromic acid, and leave a subsalt, or the very stable oxide or carbonate of manganese, which may be peroxidized by the use of chloride of lime, ...
— Photographic Reproduction Processes • P.C. Duchochois
... observation. The agreement was verified by Angstrom; two further coincidences were established; and in 1866 a fourth hydrogen line in the extreme violet (named h) was detected in the solar spectrum. With Thalen, he besides added manganese, titanium, and cobalt to the constituents of the sun enumerated by Kirchhoff, and raised the number of identical rays in the solar and terrestrial spectra of iron ...
— A Popular History of Astronomy During the Nineteenth Century - Fourth Edition • Agnes M. (Agnes Mary) Clerke
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