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CAP. XXVII. (Book 27)
The Instruments and Materials us'd in Painting and the preparing Colours to the Pallat.
WHite Flakes being pick'd and scrap'd must first be ground very fine in water, afterwards Temper'd on the Stone with the muller with Nut-Oyle: then cover it with water in a galli∣pot or it will skin over. But so it must not be kept very long for the Oyle will grow Fat and make it unfit for use. For Dead-Colouring you may grind white lead in Lynseed Oyle.
Vermilion if it have glittering specs in it, or of very light Colour, it is not good as being mixt with Red Lead, the best you may buy at the Wax-chandlers: it must be first finely ground in Brandy or Urine. Temper it on the Pallat with nut Oyle, if for Flesh: but for Drapery, &c. use a very little drying Oyle.
Red Lead being finely ground in water, and dry'd; may be Temper'd on the Pallat with Lynseed Oyle being a great dryer of it self.
Light Red, Burnt Oker, Indian Red, must be ground very fine in Lynseed Oyle; and temper'd on the Pallat with Nut-Oyle if for Flesh, but if simply us'd for Draperys, &c. there may be a little drying Oyle in it.
Fine Lake must be well ground in Lynseed Oyle; if us'd in the light Carnation of a Face in Nut Oyle; and so temper'd on the Pallat, but if us'd simple in Glasing it must be mixt with drying Oyle or Vernish or nut Oyle and Turpentine mixt.
Masticots not being fine enough as they are bought at the shops, must be finer ground with Lynseed Oyle on a Porphery: reserve them in Bladders but not too long; There be divers sorts but the principal are of light Lemmon Colour, or deeper bright Yellow.
Orpment after you buy it, must be finer ground in Lynseed Oyle, then laid on brown Paper to take out what Oyle you can, that you may add the more drying oyle, or rather Glase ground to an impalpable powder and then you need not dry it on a Pa∣per, the Glass being the greatest dryer and will not soul the best Colours.