EVOLUTION AND PSYCHOLOGY 



BY 

 G. STANLEY HALL 



DARWIN'S CONTRIBUTION TO PSYCHOLOGY 



The contributions of Darwin to psychology 

 have not been adequately recognized. Not only 

 in his famous seventh chapter on " Instinct " in 

 the Origin of Species; in the second and third in 

 the Descent of Man, comparing the psychic pow- 

 ers of men and animals; in his Expressions of 

 Emotions, and in Domestication, but sometimes 

 in other works, he not only showed a depth of in- 

 sight into, but laid anew the foundations of, 

 genetic as well as comparative psychology. These 

 should, and I believe will, eventually make him 

 regarded as hardly less the founder of a new 

 departure in this field than in that of classifica- 

 tion, form, and structure. For him the soul of 

 man is no whit less the offspring of that of ani- 

 jBials than is his body. Our psychic powers are 

 new dispensations of theirs. The ascending 

 series of gradations is no more broken for the 

 psyche than for the soma. The gaps are no 

 wider or more numerous from the lowest to the 

 highest in the one than in the other. The affini- 

 ties and analogies are as close, and the soul in- 



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