CHAPTER III
BEHAVIOR: DANCE MOVEMENTS
Dancing—Restlessness and excitability—Significance of restlessness— Forms of dance: whirling, circling, and figure-eights—Direction of whirling and circling: right whirlers, left whirlers, and mixed whirlers— Sex differences in dancing—Time and periodicity of dancing—Influence of light on activity—Necessity for prolonged observation of behavior.
CHAPTER IV
BEHAVIOR: EQUILIBRATION AND DIZZINESS
Muscular coordination—Statements of Cyon and Zoth concerning behavior— Control of movements, orientation, equilibration, movement on inclined surfaces, climbing—The tracks of the dancer—Absence of visual dizziness—Comparison of the behavior of the dancer with that of the common mouse when they are rotated in a cyclostat—Behavior of blinded dancers (Cyon, Alexander and Kreidl, Kishi)—Cyon's two types of dancer— Phenomena of behavior for which structural bases are sought: dance movements; lack of response to sounds; deficiency in equilibrational ability; lack of visual and rotational dizziness.
CHAPTER V
STRUCTURAL PECULIARITIES AND BEHAVIOR
The functions of the ear—Structure of the ear of the dancer as described by Rawitz, by Panse, by Baginsky, by Alexander and Kreidl, and by Kishi— Cyon's theory of the relation of the semicircular canals to space perception—Condition of the auditory organs—Condition of the equilibrational organs—Condition of the sound-transmitting organs—The bearing of the results of anatomical investigations upon the facts of behavior.