Andrews, E. C. (Emory Cobb), 1878-1932 · Chicago. Inland Printer · leaf 30
light, we have sixty-eight hundredths of a micron for the wave-length of that particular red light. In the case of blue light there will be twelve bands, which gives us forty-five hundredths microns as the wave-length of blue. The wave-lengths of the principal colors are approxi- mately as follows… … Fig. 5. times. You will notice that in the experiment the wave- length of blue was found to be forty-five hundredths of a micron, while in the table it appears as forty-eight hun- dredths. What is blue? Even in dealing with light we are 24
Color printing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
