xii ANALYSIS 



character of the organism constant at an equilibrium point through 

 unceasing change, a tendency illustrated by the rhythmical processes 

 of health, and (3) by repair, regeneration, and development. 4. In 

 this self-maintenance through change and by adaptability the 

 organism differs from the machine. 5. The same principle appears 

 in the expenditure of energy by an organism. 6. Resulting concep- 

 tion of organic adaptability. Difficulties both in the mechanical and 

 the teleological interpretation Pages 22 37 



CHAPTER IV 



REFLEX ACTION 



Action may be due to internal structural changes, (2) or to external 

 stimulus. A uniform response to sensory stimulus is a Reflex. 



3. The reflex is not purposive but arises from a preformed structure. 



4. It is however adaptable in varying degrees to the condition of the 

 organism as a whole, (5) and then simulates true conation (6) and 

 becomes a constituent element in higher forms of action. 7. Develop- 

 ment of the reflex by selection among random actions effected by 

 experience in the individual (10) and by the survival of successful 

 types in the race Pages 3856 



CHAPTER V 



CONATION 



I. Conation in its simplest form is tendency to change the condition. 

 Selection of successful efforts. 2. Sensori-motor action adapted to 

 unique combinations of stimuli. Function of consciousness. 



Pages 5765 



CHAPTER VI 



INSTINCT 



Instinct is a product of Evolution. 2. It cannot be resolved into a 

 form of intelligence. 3. Its evolution is merely one aspect of the 

 evolution of structure. 4. The more mechanical instincts approxi- 

 mate to compound reflexes. 5. But in true instinct behaviour is 

 governed by a persistent interest to the service of which action is 

 adapted, (6) and which in varying degrees respnods to the 

 " situation " as a whole. 7. " Pure " instinct employs reflex and 

 sensori-motor action, but intelligence proper arises within the sphere 

 of instinct, (8) though operating within narrow limits. 9. Hence 

 arise strange contrasts of sagacity and stupidity in the same animal, 

 to be ascribed to the limited scope of intelligence. 10. As its scope 

 widens, intelligence gradually replaces instinct, n. The place of 

 instinct in the human mind Pages 66 106 



