Soon, however, a move to Baltimore was effected, to quarters that would afford space for laboratory work, within a reasonable distance from the Bureau of Standards, and near to The Johns Hopkins University where Mr. Munsell intended to do such graduate work in physics and psychology as might help to carry out and incandescent illuminants by the method of the very general laboratory plans he was developing under Mr. Priest’s guidance. This move was made in June of 1923, Munsell, Nickerson, Carlson, and Bond making the move with the company. The headquarters of the Munsell Color Company have been at 10 East Franklin Street in Baltimore since that time.
Not long after this move Blanche Robertson (Bellamy), in August 1924, and Genevieve Becker (Reimann), in January 1925, were employed by the company. Mrs. Reimann left the company in 1929 but has continued with work that has included color specification. Mrs. Bellamy at the present writing is manager of the Munsell Color Company.
Under the advice and inspiration of Irwin G. Priest, the Munsell Research Laboratory broadened its activities. During a year period, it supported considerable research activity in its own laboratory, and in those of the Bureau of Standards.
Mr. Priest advised that a standard for ““white light” must be adopted before color measurements, of Munsell or any other system, could be made most useful, and data for setting a standard were not available. Therefore, one of the first projects supported by the Munsell Research Laboratory at the Bureau of Standards aided in procuring fundamental data. In fact, a considerable part of the data used by Mr. Priest at the 1931 I.C.I. meeting, when a standard observer and standard illuminants were adopted, had been obtained during the course of work partially or wholly supported by the Munsell Research Laboratory.
Little of the work done either at the Bureau of Standards or at the Munsell Research Laboratory in Baltimore has been published, but the following reports of work supported by funds of the Munsell Research Laboratory have been read before the Optical Society (A designates abstract):
I. G. Priest, “Progress on the determination of normal gray light”, (Oct., 1922, Meeting), J. Opt. Soc. Am. and Rev. Sci. Inst. 7, 72A (1923).
I. G. Priest and C. L. Cottrell, “The effect of various conditions upon the determination of the normal stimulus of gray,” (Oct., 1922, Meeting), J. Opt. Soc. Am. and Rev. Sci. Inst. 7, 73A (1923).
I. G. Priest, “The colorimetry and photometry of daylight rotatory dispersion,’’ (Oct., 1922, Meeting), J. Opt. Soc. Am. and Rev. Sci. Inst. 7, 75A (1923); 7, 1175 (1923); Trans. I. E. S. 18, 861 (1928).
I. G. Priest, “Preliminary data on the color of daylight at Washington,” (Oct., 1922, Meeting), J. Opt. Soc. Am. and Rev. Sci. Inst. 7, 78A (1923).
I. G. Priest, “Apparatus for the determination of color in terms of dominant wavelength, purity and brightness,” (Oct., 1923, Meeting), J. Opt. Soc. Am. and Rev. Sci. Inst. 8, 28A (1924); 8, 173 (1924).
Priest, Gibson and Munsell, “A comparison of experimental values of dominant wavelength and purity with their values computed from the spectral distribution of the stimulus,”’ (Oct., 1923, Meeting), J. Opt. Soc. Am. and Rev. Sci. Inst. 8, 28A (1924).
Priest, McNicholas and Frehafer, “Some tests of the precision and reliability of measurements of spectral transmission by the Konig-Martens spectrophotometer,”’ (Oct., 1923, Meeting), J. Opt. Soc. Am. and Rev. Sci. Inst. 8, 30A (1924); 8, 201 (1924).
Munsell, Priest and Gibson, “Specification of color in terms three to four of dominant wavelength, purity and brightness,” (Oct., 1924, Meeting), J. Opt. Soc. Am. and Rev. Sci. Inst. 10, 291A (1925).
I. G. Priest, “Gray skies and white snow,” (Feb., 1925, Meeting), J. Opt. Soc. Am. and Rev. Sci. Inst. 11, 133A (1925); J. Wash. Acad. Sci. 15, 306 (1925).
K. S. Gibson and F. K. Harris, “A spectrophotometric analysis of the Lovibond color system,” (Oct. 1925, Meeting), J. Opt. Soc. Am. and Rev. Sci. Inst. 12, 481A (1926); Sci. Pap. Bur. Stand. 22, 1 (1927-28); S547.
I. G. Priest, “Standard artificial sunlight for colorimetric purposes,’’ (Oct., 1925, Meeting), J. Opt. Soc. Am. and Rev. Sci. Inst. 12, 479A (1926).
A. E. O. Munsell and P. Reeves, “Value sensitivity and value scales,” (Oct., 1925, Meeting), J. Opt. Soc. Am. and Rev. Sci. Inst. 12, 481A (1926).
D. B. Judd, “The computation of colorimetric purity,” (Oct., 1925, Meeting), J. Opt. Soc. Am. and Rev. Sci. Inst. 12, 482A (1926); 13, 133 (1926).
I. G. Priest, “An experiment bearing on the adoption of a standard neutral stimulus in colorimetry: the choice as between ‘sun’ and ‘equal energy’,” (Feb., 1926, Meeting), J. Opt. Soc. Am. and Rev. Sci. Inst. 13, 306A (1926).
I. G. Priest and F. G. Brickwedde, “The minimum per ceptible colorimetric purity as a function of dominant wavelength with sunlight as neutral standard,” (Feb., 1926, Meeting), J. Opt. Soc. Am. and Rev. Sci. Inst. 13, 306A (1926); J. Opt. Soc. Am. 28, 133 (1938).
