Chapter VIII: Appendix: To Chapter II

PLATE I.

THE COLOR SPHERE, WITH MEASURED SCALES OF HUE, VALUE, AND CHROMA.

The teacher of elementary grades introduces these scales of tempered color as fast as the child's interest is awakened to their need by the exercises shown in Plates II. and III. Thus the Hue scale is learned before the end of the second year, the Value scale during the next two years, and the Chroma scale in the fifth year. By the time a child is ten years old these definite color scales have become part of his mental furnishing, so that he can name, write, and memorize any color group.

1. _The Color Sphere in Skeleton._ This diagram shows the middle colors on the equator, with strong red, yellow, green, blue, and purple, each at its proper level in the value scale, and projecting in accordance with its scale of chroma. See the complete description of these scales in Chapter II.

2. _The Color Score._ Fifteen typical steps taken from the color sphere are here spread out in a flat field. The FIVE MIDDLE COLORS form the centre level, with the same hues in a lighter value above and in a darker value below. Chapter VI. describes the making of this Score, and its use in analyzing colors and preserving a written record of their groups.

3. _The Value Scale and Chroma Scale._ Each of the five color maxima is thus shown at its proper level in the scale of light, and graded by uniform steps from its strongest chroma inward to neutrality at the axis of the sphere. Pigment inequalities here become very apparent.

FOR PLATES II. & III.,

SEE APPENDIX TO CHAPTER IV.,
CHILDREN'S COLOR STUDIES.