Students' text-book of color, or, Modern chromatics : with applications to art and industry (1881)
Rood, Ogden N. (Ogden Nicholas), 1831-1902 · New York : D. Appleton · leaf 276
Fig. 128.—Black and White Diskfor Experiment on Contrast. Fig. 129.—Showing the result whendisk, Fig. 12S, is set into rapidrotation. placed near a darker grey, the light shade appears stilllighter, the dark shade still darker. This can be beautifullyshown with the aid of our very convenient…
Color · Painting · Color in art
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer01inte-89-18.webp)
