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CHAP. VIII. (Book 8)
Of Mineral Spirits; Quick-silver, Salphur or Brinsstone, Arsenick, with his kinds, Cadmia.
AFist kind of Minerals are called Spirits; these are volatil in the fire, and have in∣gression into Metals, but no metalline fusion. These are Quick-silver, Sulphur, Arsenick, Cad∣mia, Rusma, &c. All which being volatil, will easily sublime, and being mixed with metals, as Cadmia's ordinarily to make Brass, will alter the colour of the metal, and make it less fusible, and less malleable. I will briefly run over the exam∣ples of these and their virtues or qualities, being more obscure, and in our Baths less useful than the former, and more rare.
Qnick silver was not well known to Galen, for he confesseth that he had no experience of it, and did think it to be meerly artificial, and not naturally bred in the earth. * 1.1 Dioscorides makes no mention of the temperature of it, but holds it to be a pernitious venome, and to fret the en∣trails; although Matthiolus affirms that it is safely given to women to further their deliver∣ance, and we find it so by often expcrience, both in that cause, and in Worms, and in the French Disease and Leprosies, if it be skilfully prepared, and with judgement administred. Fallopius holds it to be one of the miracles of nature. Those that take upon them to determine of the qualities of it, are much distracted; fome reckoning it to be hot and dry, and some cold and moist; and both