Chromatography : a treatise on colours and pigments and of their powers in painting
A nineteenth-century English treatise on artists' colours and pigments by George Field, published in London in 1869 by Winsor and Newton, written for painters and colour makers. Its pictures are plain line diagrams and hand-coloured plates: a blank circle with a central point, a glass apparatus labelled A, B and C, and a colour circle titled Scale of Chromatic Equivalents with segments named Red, Yellow, Blue and Green. A designer might take from them the early systematic colour wheel layout and its arrangement of primary and secondary hues.
