Put verdigris in a dish made of bronze or electrum and pour wine upon it, so that the wine becomes green. Pour the liquid portion of this mixture into another bronze vessel, and pour wine once more into the first vessel from which you have removed the liquid. And when this too has been saturated and removed, add wine a third time. Then you may leave it, and use the green for your work. If you mix Apulian white with this green, it will become pale green; but in this case, do not let the white be mixed with the white of egg, but with wine. And if you put saffron in the green, it will become a yellow-green, provided that the saffron is tempered with wine. Add white, if you wish.