Colour : a handbook of the theory of colour (1916)
Hurst, George H. (George Henry) · London : Scott, Greenwood · leaf 64
45 CAUSE OF COLOUK IK COLOUBED BODIES. sensation of white ; but owing to the considerable degree of absorption there is a very low luminosity, which appears to the eye as a grey ; its production in this way is equivalent to mixing a black and white together, the shade of grey … CARNI NE PIG. 31. produced depending on the relative proportion of the dyes used. Pigments, also, give absorption spectra, which may be exhibited in two ways, either by the light that is reflected from them, or by the light that is caused to pass through a thin INDIAN RED FIG. 32. layer of the…
Color
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