TABLE OF REFERENCES 



(The names of the authors of anonymous works are placed in parenthesis.) 



1. Zell, Th. Das rechnende Pferd. Ein Gutachten iiber den 



" Klugen Hans " auf Grund eigener Beobachtungen. Berlin, 

 R. Dietze, 1904. 



2. Freund, F. Der " kluge " Hans ? Ein Beitrag zur Aufklarung. 



Berlin, Boll and Fickardt, 1904. 



3. Hansen, F. C. C. and A. Lehmann. Uber unwillkiirliches 



Fliistem. Philosophische Studien, edited by W. Wundt, 

 Leipsic, 1895, Vol. 11, pp. 471 £f. 



4. Sanden, S. v. Uber Aktivitat und Passivitat des Reiters und 



seiner Hiilfen. Deutsche hippologische Presse, Berlin, 1896, 

 Jahrg. 12, No. 11, pp. 117 £f. and No. 12, pp. 128 ff. 



5. Weyer, E. M. Some Experiments on the Reaction-Time of 



a Dog. Studies from the Yale Psychological Laboratory, 

 New Haven, Conn., 1895, Vol. 3, pp. 96 f. 



6. Dodge, R. Die motorischen Wortvorstellungen. Halle a. S., M. 



Niemeyer, 1896, pp. 40 and 77. 



7. Darwin, Chas. The Expression of the Emotions in Man and 



Animals. New York, D. Appleton & Co., 1873, pp. 273 ff. 



8. Wundt, W. Volkerpsychologie. Leipsic, W. Engelmann, 1900, 



Vol. 1, Part I, pp. 175 f. 



9. LiEBER, F. On the Vocal Sounds of Laura Bridgeman. Smith- 



sonian Contributions to Knowledge, Washington, 1851, Vol. 

 2, Art 2, pp. 1 1 f . (Laura wrote her name : Bridgman.) 



10. Garner, R. L. The Speech of Monkeys. New York, Chas. 



Webster & Co., 1892, pp. 57 ff. 



11. F£r6, Chas. Sensation et mouvement. Paris, F. Alcan, 1887, 



pp. 102 f. 



12. James, W. The Principles of Psychology. New York, Henry 



Holt & Co., 1890, Vol. 2, pp. 372 and 381. 



13. Beard, G. M. The History of Muscle-Reading. Journal of 



Science, and Annals of Astronomy, Biology, Geology, etc., 

 London, r88l. Series 3, Vol. 3, p. 558 f. 

 267 



