mix lighting

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David Paterson. Showing the Tertiary Shades are Primary Colours Dulled with Grey, Simple Method of Creating a Spectrum, Six Figures Illustrating Dichroism in Colours, Simple Spectra Absorption, Different Results in Mixing Coloured Lights, Chromatic Circle, Primary, Secondary, and Tertiary Colours, Chromatic Circle, Suitable and Unsuitable Colour-Mixing, The Two Absorption Spectra. Textile Colour Mixing. 1915.

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