Chromatics: Or, the Analogy, Harmony, and Philosophy of Colours

according Accordingly afford analogy ancient Greeks appear archeus artist beauty blue catoptric catoptron centre chemical chiaroscuro chro chromascope chromatic chromatic scale circle Citrine coincident coloured specula colourist colourless complementary complementary colour composition compound consonance CONSONANCES AND DISSONANCES contrast dark diagram diatessaron diatonic scale discords doctrine effects elements of light employed enharmonic equal equivalent Example expression figures forms glass green harmony hues hydrogen images lenses lensic prism light and colours light and shade lours manner melody ment metrochrome musician nature neutral neutralise Newton object octave optical Orange painting perfect philosopher photogenic picture poet poetry powers of colours preceding experiments predominates primary triad principle prismatic produced proportions Purple reflected refraction regard relations of colours remarkable Russet scale sciogenic secondary colours sensible spectra spectrum speculum subordination tertiary colours three primary colours tints tion Titian tone transparent triangle variety various viewed vision whence wherein yellow