CHAPTER VI

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THE MIND-STUFF THEORY

Evolutionary Psychology demands a Mind-dust. Some alleged proofs that it exists. Refutation of these proofs. Self-compounding of mental facts is inadmissible. Can states of mind be unconscious? Refutation of alleged proofs of unconscious thought. Difficulty of stating the connection between mind and brain. 'The Soul' is logically the least objectionable hypothesis. Conclusion.

## CHAPTER VII .

THE METHODS AND SNARES OF PSYCHOLOGY

Psychology is a natural Science. Introspection, 185. Experiment. Sources of error. The 'Psychologist's fallacy'.

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