Luckiesh, Matthew, 1883-1967 · New York, D. Van Nostrand company · leaf 414
382 COLOR AND ITS APPLICATIONS wave-length. The ordinate axis is now a logarithmic scale of relative luminosity. By extending these straight lines a graphical picture of spectral luminosity of the dye-solution is obtained for any concentration of depth. It is seen that this solution in great depth… … after the absorption-band of a weak solution or small depth is passed. Incidentally, it will be noted that the slope of line 0.44/* is less than that of 0.58/* which shows that in low concentrations or in relatively small depths of a higher concentration the solution is purple, that is, it has an…
Color
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
