First published in 1921, this book examines the psychological and philosophical nature of instinct in humans.First published in 1921 as the second edition of a 1917 original, this book examines the psychological and philosophical nature of instinct in humans. Drever analyses instinct's connection to emotions and behaviour, as well as how philosophers from the western tradition have understood instinct and its role in biology.First published in 1921 as the second edition of a 1917 original, this book examines the psychological and philosophical nature of instinct in humans. Drever analyses instinct's connection to emotions and behaviour, as well as how philosophers from the western tradition have understood instinct and its role in biology.First published in 1921 as the second edition of a 1917 original, this book examines the psychological and philosophical nature of instinct in humans. Drever analyses instinct's connection to emotions and behaviour, as well as how philosophers from the western tradition have understood instinct and its role in biology. This book will be of value to anyone with an interest in the overlap between psychology and biology.1. Introduction; 2. Descriptive psychology of natural inclination or instinct from Hobbes to Dugald Stewart; 3. Philosophical and scientific views of the nature and meaning of instinct; 4. The psychological nature of instinct - the 'knowledge' of instinct; 5. The psychological nature of instinct - instinct and intelligence; 6. The psychological nature of instinct - instinct-interest and 'meaning'; 7. Classification of instinctive tendencies of man-instinct and emotion; 8. The specific 'instinct' tendencies; 9. Interests and sentiments; 10. The general 'instinct' tendencies; 11. The 'appetite' tendencies; Appendix 1. Meaning as affective; Appendix 2. Driesch's physiological criteria of reflex activity, instinct, and 'action'; Appendix 3. The emotional phase of affective experience; Bibliography; Index.