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446. WUNDT, W., 1894. Lectures on human and animal psy- 



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447. YERKES, A. W., 1906. Modifiability of behavior in Hy- 



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448. YERKES, R. M., 1900. Reactions of Entomostraca to 



stimulation by light, I. Am. Jour. Physiol., vol. 3, p. 157. 



449. 1901. Reactions, etc., II. Reactions of Daphnia and 



Cypris. Ibid., vol. 4, p. 405. 



450. 1901. The formation of habits in the turtle. Pop. 



Sci. Mo., vol. 58, p. 519. 



451. 1902. A contribution to the physiology of the nervous 



system in the medusa Gonionemus murbachii, I. The 

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452. 1902. A contribution, etc., II. The physiology of the 



nervous system. Ibid., vol. 7, p. 181. 



453. 1902. Habit formation in the green crab, Carcinus 



granulatus. Biol. Bull., vol. 3, p. 241. 



454. 1903. The instincts, habits, and reactions of the 



frog, I. Associative processes of the green frog. Har- 

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455. 1903. The instincts, etc., II. Reaction time of the 



green frog to electrical and tactual stimuli. Ibid., 

 vol. 1, p. 598. 



456. 1903. The instincts, etc., III. Auditory reactions of 



frogs. Ibid., vol. 1, p. 627. 



457. 1903. Reactions of Daphnia pulex to light and heat. 



Mark Anniversary Volume, p. 361. 



458. 1904. The reaction time of Gonionemus murbachii 



to electric and photic stimuli. Biol. Bull., vol. 6, p. 

 84. 



459. 1904. Space perceptions of tortoises. Jour. Comp. 



Neur. and Psych., vol. 14, p. 17. 



460. 1904. Inhibition and reinforcement of reactions in 



the frog. Ibid., vol. 14, p. 124. 



