...This is manganese dioxide, the master tells us...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
...If the bromide be treated with amixture of sulphuric acid, and peroxide of manganese, bromide is onlydisengaged...
Samuel D. Humphrey 「American Handbook of the Daguerrotype」
...or Umber, is a natural ochre, chiefly composed of oxide of manganese,oxide of iron, silica, and alumina...
George Field 「Field's Chromatography」
...It contains manganese and iron, and may be producedartificially...
George Field 「Field's Chromatography」
...Sometimes manganese and titanic acidare likewise found...
George Field 「Field's Chromatography」
...The hornblendic cement, with its iron or manganese base, produces thevariegated appearance which may be seen in specimens from differentlocalities...
Hugh Macmillan 「Roman Mosaics」
...Milky quartz was scattered over them, although no similarformation was visible; of manganese, basalt, and ironstone, with othersubstances, there were now no indications...
Charles Sturt 「Expedition into Central Australia」
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