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References

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  1. Jour. Opt. Soc. Am.,  2, 3, p. 23; 1919. , October, 1919.
  2. , “An Examination of the Munsell Color System,” September, 1920. , “The Spectral Transmissive Properties of Dyes,” June, 1922.
  3. The author is indebted to Mr. C. L. Snow for these illustrations.
  4. See, for example, Ives: Astrop. Jour. 40, p. 182; 1914.
    [Crossref]
  5. This may, instead, have been a result of the obstruction by the grid of the photoelectric cell, which might vary as the area of irradiation varied.
  6. , p. 524; June, 1918.

1919 (1)

Jour. Opt. Soc. Am.,  2, 3, p. 23; 1919. , October, 1919.

1914 (1)

See, for example, Ives: Astrop. Jour. 40, p. 182; 1914.
[Crossref]

Ives,

See, for example, Ives: Astrop. Jour. 40, p. 182; 1914.
[Crossref]

Astrop. Jour. (1)

See, for example, Ives: Astrop. Jour. 40, p. 182; 1914.
[Crossref]

Jour. Opt. Soc. Am. (1)

Jour. Opt. Soc. Am.,  2, 3, p. 23; 1919. , October, 1919.

Other (4)

, “An Examination of the Munsell Color System,” September, 1920. , “The Spectral Transmissive Properties of Dyes,” June, 1922.

The author is indebted to Mr. C. L. Snow for these illustrations.

This may, instead, have been a result of the obstruction by the grid of the photoelectric cell, which might vary as the area of irradiation varied.

, p. 524; June, 1918.

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Figures (5)

Fig. 1
Fig. 1

Spectral characteristics of certain gas-filled, potassium, photoelectric cells.

Fig. 2
Fig. 2

Showing failure of photoelectric cells to measure spectral transmission correctly by the ratio-of-deflections method.

Fig. 3
Fig. 3

Outline of apparatus.

Fig. 4
Fig. 4

Illustrating sensibilities of present apparatus for physical measurement of transmission in the visible spectrum.

Fig. 5
Fig. 5

Illustrating accuracy of measurement of transmission in the visible spectrum by physical methods.