The author offers a practical system for standardizing color names and specimens for scientific and industrial use, arranging hues into a 36-part chromatic circle derived from the spectrum and extended with red-violet links. The work documents methods for producing and matching colors using Maxwell-disk mixtures, dyes, and pigments, and presents fifty-three plates that reproduce 1,115 named colors. Prefatory and prologue material outline objectives and methodology; supporting tables give component percentages and tone scales; and appendices supply nomenclature rules, lists of colors, bibliographic references, and technical notes on plate reproduction and color matching.