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1 The name, no doubt, of a copper ore which has not been identified. Delafosse suggests that it may have been an ore of iron and copper pyrites in combination with a silky copper malachite. See Chapter 2 of this Book, and B. xxxv. c. 52.
2 Brongniart is of opinion that the "sory" of Pliny is the sulphate of copper, probably with an excess of acid. He informs us that he has received a specimen of a native sulphate of copper from Cuença, in Spain, which possesses all the characteristics of "sory" as here described. He considers it more difficult to ascertain the chemical composition of "misy," but is disposed to consider it as a mixed sulphate of iron and copper.—B.
3 In the next two Chapters.—B.
4 We have a similar account of its medicinal virtues given us by Dioscorides; Celsus also enumerates chalcitis among the corrosives, or cauteries, "quæ exedunt corpus." He also recommends it for affections of the eyes.—B.
5 "Sore ointment."
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