Gray Drab.
—Mix five parts of black with four of white and a little deep chrome yellow.
Green Slate.
—Same as lead, but with more black and blue.
Iron Gray.
—Mix eight parts of black with two of white and a little orange.
Jasper.
—This may be described as “a pepper and salt shade.” Mix nine parts of black with two of white, with a touch of deep chrome.
Lead.
—This is simply a dark gray, and is made by adding lamp black to white lead with sufficient blue.