2. Destructive (analytic) movement-play 97 3. Constructive (synthetic) movement-play 99 4. Playful exercise of endurance 101 5. Throwing plays 103 (_a_) Simple throwing 105 (_b_) Throwing with the help of a stroke or blow 107 (_c_) Rolling, spinning, shoving, and skipping foreign bodies 110 (_d_) Throwing at a mark 114 6. Catching 118 III. PLAYFUL USE OF THE HIGHER MENTAL POWERS 121 A. Experimentation with the mental powers 122 1. Memory 122 (_a_) Recognition 122 (_b_) Reflective memory 128 2. Imagination 131 (_a_) Playful illusion 131 (_b_) Playful transformation of the memory-content 135 3. Attention 144 4. Reason 152 B. Experimentation with the feelings 158 1. Physical pain 159 2. Mental suffering 160 3. Surprise 163 4. Fear 166 C. Experimentation with the will 169 PART II _THE PLAYFUL EXERCISE OF IMPULSES OF THE SECOND OR SOCIONOMIC ORDER_ I. FIGHTING PLAY 173 1. Direct physical fighting play 174 2. Direct mental contests 186 3. Physical rivalry 197 4. Mental rivalry 201 5. The destructive impulse 217 6. Teasing 220 7. Enjoyment of the comic 232 8. Hunting play 237 9. Witnessing fights end fighting plays. The tragic 244 II. LOVE PLAY 252 1. Natural courtship play 254 2. Love play in art 268 3. Sex in the comic 278 III. IMITATIVE PLAY 280 1. Playful imitation of simple movements 291 (_a_) Optical percepts 291 (_b_) Playful imitation of acoustic percepts 294