The psychologists' definition of color has been adopted in the Report of the Committee on Colorimetry of the Optical Society of America , J. O. S. A.6, 527, 1922, the acknowledged authority in this country. This report is presently to be revised and enlarged.
2.
3. For general reference to this subject see the Report of the Committee on Spectrophotometry of the Optical Society of America, J. O. S. A.10, 169, 1925.
3.
Hardy: A Recording Photoelectric Color Analyser, J. O. S. A.18, 96, 1929.
4.
A technical description of the new color analyzer will appear shortly.
5.
The spectrophotometric curves in this report are presented merely to show their usefulness and the present product of the instrument. For actual measurements a finer pen will be used, and projected changes in the amplifiers will give a needed increase in sensitivity and less "waviness."
6.
For reference, see the "Colorimetry Report" noted in 1.
