In making chrome yellow, 62 1/2 parts of lead acetate should be used to 291/2 parts of bichromate of potash. These salts should be dissolved separately in hot water, and the solutions allowed to become quite cold before they are mixed. Pour the bichromate solution into the lead acetate solution, stirring the whole. After mixing, allow to settle, then pour off the clear liquid; add cold water, stir well, allow to settle, and pour off the clear liquid. Repeat this washing several times, then pour the chrome yellow into a white cloth stretched on a frame; allow all the water to run off, press, and dry very gently in a clean oven or drying chamber. Paler shades may be obtained by replacing a portion of the bichromate with sulphate of soda.