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Magical Transmutations


Infuse a few shavings of logwood in common water, and when the liquor

is sufficiently red, pour it into a bottle. Then take three

drinking-glasses, and rinse one of them with strong vinegar; throw

into the second a small quantity of pounded alum, which will not be

observed if the glass has been recently washed, and leave the third

without any preparation. If the red liquor in the bottle be poured

into the first glass, it will appear of a straw colour; if into the

second, it will pass gradually from bluish-grey to black, when stirred

with a key, or any piece of iron, which has been previously dipped in

strong vinegar. In the third glass, the red liquor will assume a

violet tint.



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