Valuable Secrets concerning Arts and Trades:
or Approved Directions, from the best Artists, for the Various Methods...
Printed by Thomas Hubbard,
Norwich, 1795Chap. V. Secrets concerning colours & painting.
§ VIII. Preparations of colours of all sorts for oil, water, and crayons.
XCVIII. To make an admirable white had, fit for oil painting and colouring of prints.
Grind the finest white lead in flake you can find, on the stone with vinegar. It will immediately turn black. Wash it well in a panful of water, and let it settle. Pour the water off by inclination, and grind it again with fresh vinegar, then wash it a-new. Repeat this operation four or five times, and you will get a most beautiful white.
XCIX. The preparation of verdigrise.
Grind the verdigrise with vinegar, and put it in a piece of brown bread dough. Bake it as you would bread; and, when done, cut it open and take it out. You will then have a very fine verdigrise, fit to work with, either in oil or water, as you like.
C. A fine liquid green.
Mix well together, one pound of Montpelier verdigrise, and half a pound of white tartar from the same place. Put this a-soaking for twelve hours in two quarts of the stronge st vinegar, then reduce it by boiling to one half. Let it rest for two days, and filter it afterwards in a bottle, wherein you will keep it for use.
CI. To make the Stil-de-grain, which we call Brown pink.
Bruise and boil in three quirts of water four ounces of French berries, to the reduction of one half. Strain all through a cloth, and put in this, juice a discretionable quantity of whitening, pounded and sifted into a subtile powder, so as to make a thick paste, which you put into small tied bags, & set to dry on tiles. When dry, it is used with gum. And to render it finer, you may put some gamboge.
CII. To make a fine vermilion.
Make a mixture of cochineal powder and burnt alum. Stifle it quite hot in rose or plaintain water, it will give you the-finest vermilion in the world.
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