Church, A. H. (Arthur Herbert), 1834-1915 · London, New York, Cassell and Company, Limited · leaf 106
91 . VIII.] THE CHROMATIC CIRCLE. waive the obligation to rectify the former defect as being of minor practical importance, the angular distances from each other of the several hues on the circumference can be corrected by means of direct experiment. In the case of pigment- colours, to which we… … Green-Blue Fig. 21. chief colours, ascertain the position in a normal spectrum of the colours they severally present to the eye, and then determine the wave-lengths of those colour rays, and so fix their angular position. The results are by no means absolute, partly owing to difficulties inherent…
Color
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