Ars pictoria, or, An academy treating of drawing, painting, limning, and etching to which are added thirty copper plates expressing the choicest, nearest and most exact grounds and rules of symetry
Browne, Alexander, fl. 1660-1677.
Page 105
A way to lay a white Ground upon a Black.
First you must understand that most grounds are black, and when you lay a white ground upon a black you must not smoak the black with a Link, and you must lay the undermost ground the thinner, when you lay a white ground upon it; and if you would lay a white ground up∣on a black, take a quantity of Serice, as much as you think will cover the plate, and grind it very fine with gum water, and temper it very thin, then take a pencil and wash the plate all over very thin and even.
