Colour : a text-book of modern chromatics with applications to art and industry (1904)
Rood, Ogden N. (Ogden Nicholas), 1831-1902 · London : Kegan Paul, Trench, Trübner · leaf 240
230 MODERN CHROMATICS. … Fig. 104.— Maxwell’s Diagram as reconstructed by the Author, correct Coefficients being employed. radii are comparable with each other, since they represent the lu- minosities of the pigments compared with that of whitepaper taken as 100. The author has constructed a new kind of colour-diagram, cn…
Color
Internet Archive · Wellcome Library · Public domain (published before 1931). Free to use for anything.
![An illustration from Color-blindness [electronic resource] : its dangers and its detection (1879)](https://img.insideoutlibrary.com/img/200/ia-b20398980-89-0.webp)