1. Introductory 2. The Behaviour of the Lower Animals 3. Behaviour of Insects 4. Behaviour of the Vertebrates 5. The Instincts of the Mammals and of Man 6. Habit and Intelligence in Animals 7. Behaviour of the Natural Man 8. Perceptual Thinking 9. Attention and Interest 10. Imagining – Anticipating – Recollecting 11. Emotion 12. The Derived Emotions 13. Disposition, Temper, Temperament and Moods 14. Belief and Doubt 15. Growth of Mental Structure: The Development of Cognitive Structure or Intellect 16. Reasoning and the System of Beliefs 17. Growth of Mental Structure (Continued) INDEX