BIBLIOGRAPHY 



(It was felt that the citation of a few works bearing upon 

 the subject-matter of the essays might help those desirous of 

 pursuing the subject further j but to more than this the lists 

 make no claim.) 



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Castle, et aly '12. 'Genetics and Eugenics.' Chicago, 1912. 



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Inge, W. R., '20. 'The Idea of Progress.' Romanes Lectures. 

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Kohler, W., '21. ♦ Intelligenzpriifungen an Menschcnaffcn.' 

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Lloyd Morgan, C, '20. 'Animal Behaviour.' London, 1920. 



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M'Dougall, W., '11. 'Body and Mind.' London, 191 1. 



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Shipley and MacBride, '20. 'Zoology.' Cambridge, 1920. 



Washburn, M. F., '13. 'The Animal Mind.' New York, 



1913- 

 Weismann, A., '04. 'The Evolution Theory.' 2 vols. 



London, 1904. 

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