Colour and colour printing as applied to lithography : containing an introduction to the study of colour, an account of the general and special qualities of pigments employed, their manufacture into printing inks, and the principles involved in their application (1885)
Richmond, W. D. n 82236154 · London : Wyman & Sons · leaf 18
nation to determine whether he may not be physically unsuited for it, the safe course being to assume that he is not suitable until he proves himself to be so. Colour-blind persons are much more numerous than is usually supposed, and it is no unnecessary caution that we give. ID. Primary and… … Fig. r. These are the colours properly so called, consisting of the primaries, blue, red, and yellow, and the secondaries, purple, orange, and green. If the primaries are represented by
Chromolithography
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