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PAINTBRUSHES. “Make for yourself two or three paintbrushes of hair from the tail of a marten or badger, or a squirrel or cat, or from the mane of an ass.” (A badger has a diminutive tail). https://lnkd.in/d7yzXt5 View in LinkedIn

THE GLASS FRIT. “Throughout the night, add dry wood to the fire so that the glass, which liquifies from the frit, may be completely fused. “ https://lnkd.in/d7yzXt5 View in LinkedIn

ALTERNATIVE GLUE FOR GOLD PLATING. “Heat the bladder of an eel, which has been carefully scraped and washed. You can also heat three times the bones of the head of a dried pike...add a third part of transparent glue and heat gently.” https://lnkd.in/d7yzXt5 View in LinkedIn

GLUE FOR BINDING GOLD TO BOOKS. “Take the bladder of a fish, known as the sturgeon, wash it three times in lukewarm water, cut it up into pieces and, putting it in a very small pot with water, allow it to soften overnight. In the morning...test the glue.” https://lnkd.in/d7yzXt5 View in LinkedIn

GRINDING COLORS INTO SAP GREEN. “Take the gum which oozes from the cherry or plumb tree, cut it up very small, and place it in an earthenware pot. Pour in plenty of water, and place it in the sun, or in the winter over a fire until the gum melts. Then strain it through a cloth and, with this (drying) medium, grind the colours.” https://lnkd.in/d7yzXt5 View in LinkedIn

TINFOIL PREPARATION. “Beat pure tin very thin...rub it with cloth and charcoal...and a boar’s tooth until it shines. Get some switches of green wood, which you cut in April, split them down the middle and dry them over smoke. Then remove the outer bark and scrape the inside, which is yellow, into a clean pan adding a fifth part saffron. Over this pour plenty of old wine or beer, and when it has stood overnight, heat it in the morning over a fire until it is lukewarm...” (etc). https://lnkd.in/d7yzXt5 View in LinkedIn

GOLD LEAF PREPARATION. “Take some Greek parchment, which is made up from linen rags, and rub it on each side with the red colour obtained by burning finely ground and dried ochre. Polish it very carefully with the tooth of a beaver, a bear, or a wild boar, until it shines and the colour adheres to it with the friction...” (etc). https://lnkd.in/d7yzXt5 View in LinkedIn