| CHAPTER I |
| ORGANIC BEHAVIOUR |
| PAGE |
| I. | Behaviour in General | [1] |
| II. | Behaviour of Cells | [3] |
| III. | Corporate Behaviour | [14] |
| IV. | The Behaviour of Plants | [24] |
| V. | Reflex Action | [31] |
| VI. | The Evolution of Organic Behaviour | [35] |
| CHAPTER II |
| CONSCIOUSNESS |
| I. | The Conscious Accompaniments of Certain Organic Changes | [42] |
| II. | The Early Stages of Mental Development | [48] |
| III. | Later Phases in Mental Development | [56] |
| IV. | The Evolution of Consciousness | [61] |
| CHAPTER III |
| INSTINCTIVE BEHAVIOUR |
| I. | Definition of Instinctive Behaviour | [63] |
| II. | Instinctive Behaviour in Insects | [71] |
| III. | The Instinctive Behaviour of Young Birds | [84] |
| IV. | The Conscious Aspect of Instinctive Behaviour | [98] |
| V. | The Evolution of Instinctive Behaviour | [106] |
|
| CHAPTER IV |
| INTELLIGENT BEHAVIOUR |
| I. | The Nature of Intelligent Behaviour | [117] |
| II. | Intelligent Behaviour in Insects | [123] |
| III. | Some Results of Experiment | [134] |
| IV. | The Evolution of Intelligent Behaviour | [155] |
| V. | The Influence of Intelligence on Instinct | [168] |
| CHAPTER V |
| SOCIAL BEHAVIOUR |
| I. | Imitation | [179] |
| II. | Intercommunication | [193] |
| III. | Social Communities of Bees and Ants | [205] |
| IV. | Animal Tradition | [220] |
| V. | The Evolution of Social Behaviour | [225] |
| CHAPTER VI |
| THE FEELINGS AND EMOTIONS |
| I. | Impulse, Interest, and Emotion | [235] |
| II. | Play | [248] |
| III. | Courtship | [258] |
| IV. | Animal “Æsthetics” and “Ethics” | [270] |
| V. | The Evolution of Feeling and Emotion | [282] |
| CHAPTER VII |
| THE EVOLUTION OF ANIMAL BEHAVIOUR |
| I. | The Physiological Aspect | [295] |
| II. | The Biological Aspect | [305] |
| III. | The Psychological Aspect | [315] |
| IV. | Continuity in Evolution | [324] |
| Index | [338] |