Colour measurement and mixture. Published under the direction of the Committee of General Literature and Education appointed by the Society for Promoting Christian Knowledge (1891)
Abney, William de Wiveleslie, Sir, 1843-1920, Society for Promoting Christian Knowledge (Great Britain). General Literature Committee · London: Society for promoting Christian knowledge; New York, E. & J. B. Young & co. · leaf 184
igments together in avery simple manner.For instance, we cantake a circular discpainted in sectors withblue and red (Fig. 40),and produce a purple by causing it to rotate round FlG> 40._Di~;ted Blue andits centre. Small discs Red-of two inches in diameter may be paintedwith different coloured… … i82 COLOUR MEASUREMENT AND MIXTURE. is, however, to have an electro-motor similar tothat which moves the rotating movable sectors
Color
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