...This is manganese dioxide, the master tells us... 
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
..., toescape, peroxide of manganese is added, and the whole gently heated...
Samuel D. Humphrey 「American Handbook of the Daguerrotype」
...Heated with a mixture of peroxide of manganese and sulphuric acid,chlorine is given off, which is easily recognized by its odor and otherphysical properties...
Samuel D. Humphrey 「American Handbook of the Daguerrotype」
...It contains manganese and iron, and may be producedartificially...
George Field 「Field's Chromatography」
...It is aspecies of bog-earth or peat, mixed with manganese in variousproportions, and found on the estate of Lord Audley at Cappagh, nearCork...
George Field 「Field's Chromatography」
...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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