Does the dancer see colors?—The food-box method of testing color vision— Waugh's food-box method—Results of tests—Tests by the use of colored papers in the visual discrimination box—Yellow-red vision—Blue-orange vision—Brightness vision versus color vision—Brightness check tests—Green-blue vision—Violet-red vision—Conclusions.
CHAPTER X
THE SENSE OF SIGHT: COLOR VISION (Continued)
The use of color filters—Testing color vision by the use of transmitted light—Green-blue vision—Green-red vision—Blue-red vision—Stimulating value of different portions of the spectrum—Does red appear darker to the dancer than to us?—Conclusions concerning color vision—Structure of the retina of the dancer and its significance.
CHAPTER XI
THE ROLE OF SIGHT IN THE DAILY LIFE OF THE DANCER.
Sight and general behavior—Behavior of blinded dancers—Experimental tests of ability to perceive form—Visual guidance in mazes—Following labyrinth paths in the dark—The relative importance of visual, olfactory, and kinaesthetic stimuli—Conditions for the acquisition of a motor habit—Conditions for the execution of an habitual act.
CHAPTER XII
EDUCABILITY: METHODS OF LEARNING
The modifiability of behavior—Educational value of experimental studies of modifiability—Methods: the problem method; the labyrinth method; the discrimination method—Relation of method to characteristics of animal— Simple test of the docility of the dancer—Lack of imitative tendency— Persistence of useless acts—Manner of profiting by experience—Individual differences in initiative.