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1 It has been supposed by some, that the "Chrysocolla" of the ancients, as well as the "Cæruleum," mentioned in c. 57 of this Book, were the produce of cobalt; but the more generally received opinion is that "chrysocolla" (gold-solder) was green verditer, or mountain-green, carbonate and hydrocarbonate of copper, green and blue, substances which are sometimes found in gold mines, but in copper mines more particularly. It must not be confounded with the modern chrysocolla or Borax.
2 In Chapter 21 of this Book.
3 The "Reseda luteola," Dyer's weed, or Wild woad. See Beckmann's Hist. Inv. Vol. I. p. 478–481, where the identity of the Chrysocolla of the ancients is discussed at considerable length.
4 As to the identity of this substance, see B. xxxv. c. 52.
5 These drugs have not been identified.
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