Paint & Colour Mixing / A practical handbook for painters, decorators and all who have to mix colours, containing 72 samples of paint of various colours, including the principal graining grounds

by Arthur Seymour Jennings

Blacks.

There are a number of blacks on the market, drop black, ivory black, blue black, vegetable black, carbon black, etc. The subject of their tests is a somewhat intricate one, but its tinting strength can be readily ascertained by mixing with white lead or zinc in the manner already described. They are frequently adulterated with barytes.