COLOR IN THE SCHOOL-ROOM. 00 standards, as for illustration, if we wish to obtain a shade of the green-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 … Fig. 4. Fig. 5. the center of the wheel, if absolute accuracy is not required. When we want constant comparison of the new color with one of the standards the standard can be represented by a small disk at the center, with the new color, formed by two large disks combined in the desired…
Color
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