The relationship between Preyer's concept of psychogenesis and his views of Darwin's theory of evolution.
D005075:Biological Evolution; D002648:Child; D002657:Child Development; D004739:England; D005858:Germany; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D002666:Psychology, Child / Q000266:history*; D012641:Selection, Genetic