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A Water Which Gives Silver A Gold Colour








Take sulphur and nitre, of each an equal quantity; grind them together
very fine, and put them into an unglazed vessel; cover and lute it
well; then set it over a slow fire for 24 hours; put what remains into
a strong crucible, and let it dissolve; put it into a phial, and
whatever silver you anoint with it will have a gold colour.





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