074r - - - - - For bronzing white
Take looking—glass tin & put it to soak in gum water & pound it in a mortar. And next, you will put it on marble.
To make vermillion
Take two pounds of sulphur, and melt it, and add two pounds of mercury to it. And if this material ignites, cover it quite neatly, so that the air does not pass into the pot, then put everything for some time after into a leaded pot, into the fire. In the space of twenty—four hours, you will have good vermillon.
For making varnish
Take one pound of linseed oil, and then you will put it in a earthen pot, mixed with a crust of bread and three onions, and put it on top of a charcoal fire, and you will cook it on a little fire, so that it boil for the space of five hours. You will take half an ounce of colle farine, & you will make it boil just as before and stir with a spoon. And then after, you will put in two ounces of well—pounded sandarac & will do as above. And then after, you will take mastic & arrabeic, two ounces each, which will both be well ground, and you will put everything together, & will make it boil while stirring continuously, for the space of five hours. And then you will put d’araucq rock alum, two ounces, & then you will make it boil. And if you add two ounces of l’arablearabic to it, if you see that they are not cooked enough, have it cook more on a low
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