A nomenclature of colors for naturalists : and compendium of useful knowledge for ornithologists. (1886)
Ridgway, Robert, 1850-1929 · Boston : Little · leaf 138
vermilion + madder carmine.Blue — ultramarine.The secondaries, however, are not all of tliera produced by the mixtureof the pigments used as primaries, the orange being oranije cadmimn, andthe purple, aniline violet. This is necessary on account of the impurity ofthe red. II. — Secondary… … Blue II._ Secondary Combinations. Purple -, Orange
Colors
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