Making and Knowing
A minimal edition of BnF Ms Fr 640 in English Translation

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Making Wood Green

Take one quart of white vinegar, one ounce of green, and one ounce of rock alum. Mix them together and pour all your ingredients into a leaded pot over fire without taking any air. Then put the pot in manure for 15 days, after which time you shall remove and boil your materials for three hours.