An introduction to the study of colour phenomena, explaining a new theory of colour based entirely on experimental facts with applications to scientific and industrial investigations (1905)
Lovibond, Joseph Williams, 1833-1918 · London, E. & F.N. Spon, Limited; New York, Spon & Chamberlain · leaf 50
FIG. S … I Loviboiif s Theory of Colour Phenomena. 43 The yellow and blue scales were similarly constructed,taking care that their similar unit values were in colour equi-valence with the red units, the test of equivalence being, thatwhen equal units in the three scales were superimposedagainst a white…
Color
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