System, 3, 8, 28, 123, 130.
Need of, 46, 148.
Tree, 14, 30-34, 43, 94, 95, 124.
Waves, 21, 23, 136.
Tones, 134.
Children's color studies, Appendix IV.
Colorist, 84, 121, 177.
Coloristic art, 7, 38, 45, 177.
Combined scales, 12, 14, 36, 37, 47.
Complements, 76, 77.
Course of color study, 48-50.

Daylight photometer, 22, 103, 119.

Enamels, 28, 29, 101, 117.

Fading, 8, 23.
False color balance, Appendix III.
Flat diagrams, 14.
Fundamental sensations, 28, Appendix III.

Green, 2, 32, 104, 136, 137, 140, 147, 148.

Hue, 3, 4, 8, 9-11, 14, 18, 21-26, 34, 39, 40, 43, 54, 59, 76, 82,
89, 105.
Scale of, 12, 19, 25, 31, 35, 120, 133.

Ideal color system, 100.

Lambert's pyramid, note to 31.
Luminist, 121.

Masks, 47, 167-171.
Maxwell discs, 93, 107, 113, 117.
Measurement of colors, 3, 8, 14, 116, Appendix IV.
Middle gray, 61, 65, 72.
Middle hues, 10, 28, 65.
Mixture of hues, 56-72.
Musical terms used for colors, 6, 46, 148-150.

Neutral axis, 31, 34, 61, 65, 121.
Neutral gray, 11, 23, 25, 62, 64, 65, 72, 114, 102.
Notation diagram, 140.

Orange, 9-11, 18, 123.

Personal bias, 144, 174.
Pigments, 14, 27-29, 101-104, 125, 129.
Photometer, 65.
Primary sensations, 89.
Prismatic color sphere, 98.
Purple, 5.

Rainbow, 15, 17.
Red, middle, 1, 32, 41, 60, 66, 72, 104, 110, 122, 147, 148.
Retina, 21.
Rood, modern chromatics, Appendix I.
Runge, note to 31, Appendix V.

Shades and tints, 22.
Spectrum, solar, 15-18, 27, 28, 87, 88, 92, 95, 96.

Tone, 6.

Value, 3, 8-11, 14, 21-24, 28, 34, 39, 40-43, 54, 76, 78, 82, 94,
105, 120, 132.
Scale of, 12, 19, 25, 31, 34, 35, 64, 102, 120, 133.
Vermilion, 42, Appendix III.
Vertical (neutral) axis, 12, 25, 31, 34, 65, 68.
Violet, 90.

Warm and cold colors, 72, 123, note to 136, 137, 138.
Wave lengths, 21, 22, 23, 89.
White, 12, 16, 17, 22, 31, 41, 54, 55, 65, 87, 91, 92, 99, 119.

Yellow, 1, 32, 54, 104, 136.

The MUNSELL PHOTOMETER

Patented November 19, 1901

A portable, daylight instrument, adapted to laboratory work
in general, and of especial service in the comparison
of color values. Placed in the course
of Optical Measurements at the
Massachusetts Institute of
Technology

Price, $50

[Decoration]

IN PREPARATION

A COLOR ATLAS

Also