reen-yellow already mentioned we add a black disk to the green and yellow dis^s. Sometimes in making the combina- tions it is more eonveiiient to use a small graduated scale at '\ i ^ Fig. 4. Fig. 5. the center of the wheel, if absolute accuracy is not required. When we want constant comparison of… … Fig. 6. Fig. 7. In considering the harmonious use of colors the question which colors are complementary is very important, because harmonies of contrast are, perhaps, more beautiful and diverse than any other. The scientist has been able to determine which rays of light in the spectrum are…
Color
Internet Archive · Cornell University Library · Public domain (published before 1931). Free to use for anything.
