Sepia. This is a natural color used chiefly by artists. It cannot be imitated and it must not be used in oil.
Sienna Brown. The color is variously called sienna brown, teak brown, and other names. It is made by mixing burnt Italian sienna and French ochre with pure zinc.
Snuff Brown. French ochre and Indian red added to zinc white will produce this color. Another way to produce a snuff color is to mix four parts of medium yellow and two parts of Vandyke brown, or burnt umber may be substituted for the Vandyke brown if desired. Another snuff color may be obtained by mixing burnt umber and yellow ochre, tinging with a little Venetian red.
Tan. Mix ten parts of burnt sienna and four parts of medium chrome yellow with three parts of raw umber. White lead and burnt sienna, to which has been added a very little lamp black, will also produce a tan color. A very rich tan color may be made from ochre, burnt Turkey umber and a little orange chrome with white lead.
Thrush Brown. One part yellow ochre, three parts burnt umber, twelve parts white lead.
Vandyke Brown. This is an important brown to the house painter. It cannot be imitated, although a little red added to umber produces a color somewhat similar to it.
Vienna Smoke. The best burnt umber should be tinted with lemon chrome yellow and a little Venetian red.
Wallflower Brown. This beautiful brown may be made by a mixture of medium chrome jellow and brown lake. Or crimson lake and burnt sienna may be mixed with medium chrome.
GRAYS.
Argent. A reddish gray tint, which can be produced by mixing together nine parts of black, sixteen of white, one of red and a little orange.
Ash Gray. Lamp black and a little French ochre added to white lead give this color. Another mixture is as fol-
