Heredity and Selection in Sociology (Classic Reprint)

Excerpt from Heredity and Selection in Sociology

Useful morphological characters due to natural selection - Correlation between morphological and psychological characters - Centralisa tion of the nervous system necessary to the development of consciousness - Ribot on instinct as an inherited habit Impossibility of accepting consciousness as the basis of instinct among primitive organisms - Reflex action - Instinct a succession of reflex combinations - Instinctive movement the result of the action of external stimuli on certain cerebral centres - correla tion of colour and instinct in Xylz'na - The instinct of conjugation among micro-organisms - Consciousness is at the origin of com plicated series of actions adapted to a definite end - Neverthe less, instinct is not always the result of conscious volition Example of Sitaris humerales - Instinct of the sea-cucumber.

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