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752. Walton, A. C, 1915. The influence of diverting stimuli 



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753. 1916. 'R.ta.zivmsoi Paramecium caudatum to \i^t. Ibid., 



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754. Warren, E., 1900. On the reaction of Daphnia magna to 



certain changes in its environment. Ibid., vol. 43, p. 199. 



755. Washburn, M. F., 1904. A factor in mental development. 



Phil. Rev., vol. 13, p. 622. 



756. Washburn, M. F., and Abbott, E., 1912. Experiments on the 



brightness value of red for the light-adapted eye of the rabbit. 

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757. Washburn, M. F., and Bentley, I. M., 1906. The estab- 



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758. Wasmann, E., 1891. Die zusammengesetzten Nester imd 



gemischten Kolonien der Ameisen. Miinster. 



759. 1891. Zur Frage nach den Gehorsvermogen der Ameisen. 



Biol. Cent., Bd. 11, S. 26. 



760. 1893. Lautausserungen der Ameisen. Ibid., Bd. 13, 



S. 39. 



761. 1897. Vergleichende Studien iiber d. Seelenleben der 



Ameisen und der hoheren Tiere. Freiburg i. B. Trans., 

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762. 1899. Die psychischen Fahigkeiten der Ameisen. 



Zoologica, Heft 26. 



763. 1899. Instinkt und InteUigenz im Thierreich. Freiburg 



i. B. Trans., St. Louis, 1903. 



764. — — 1900. Einige Bemerkungen zur vergleichenden 



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765. Watkins, G. p., 1900. Psychical life in protozoa. Am. Jour. 



Psych., vol. II, p. 166. 



766. Watson, J. B., 1903. Animal education. Univ. of Chicago 



Contributions to Philosophy, vol. 4, no. 2. 



767. 1907. Kinsesthetic and organic sensations: their r61e 



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