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.