FOOTNOTES:
[179] Matita rossa.
[180] Vitriuolo: probably green vitriol, i.e., sulphate of iron.
CHAPTER XXIX. HOW TO MAKE A THIRD GILDING COLOUR FOR VERY THICK GILDING.[181]
Take the work you want to gild, & in the same way as described above, clean it[182] and gild it, then skilfully dry it; don’t be particular as to drying it too much, only let it be free of all quicksilver, then clean it again lightly and heat it over live embers. Whilst it is in process of heating spread on it a kind of wax which I will describe below.
When the wax is spread, let the work cool, then have a fire ready of such nature as shall melt off the wax without heating the metal to redness. When heated in this way, rinse it out in a solution of tartar and water—what among goldsmiths is called grommata. This done, let it stand for such time as you can say an Ave Maria, then clean it with a brush in fresh water, rubbing it well.[183] If your work has been well gilded, you may further colour it with the process I shall tell you of shortly. But as to do so you have first to wax it, I had best tell you to begin with how that wax is made; and ’tis in this wise.