References 365 



668. SEMON, R., 1904. Die Mneme als erhaltendes Princip im 



Wechsel des organischen Geschehens. Leipzig. 



669. SEWALL, H., 1884. Experiments on the ears of fishes with 



reference to the function of equilibrium. Jour. Physiol., 

 vol. 4, p. 339. 



670. SHARP, B., 1884. On the visual organs in Lamellibranchiata. 



Mith. a. d. zool. Station zu Neapel, Bd. 5, S. 447. 



671. SHELDON, R. E., 1909. The reactions of the dogfish to chemical 



stimuli. Jour. Comp. Neur. and Psych., vol. 19, p. 273. 



672. - - 1911. The sense of smell in selachians. Jour. Exper. 



Zool., vol. 10, p. 51. 



673. SHELFORD, V. E., and POWERS, E. B., 1915. An experimental 



study of the movements of herring and other marine fishes. 

 Biol. Bull., vol. 28, p. 315. 



674. SHEPHERD, W. T., 1910. Some mental processes of the rhesus 



monkey. Psych. Mon., vol. 12, no. 5. 



675. - 191 1. Imitation in raccoons. Am. Jour. Psych., vol. 22, 



P- 583- 



676. 1911. The discrimination of articulate sounds hi raccoons. 



Ibid., vol. 22, p. 116. 



677. 1912. The discrimination of articulate sounds by cats. 



Ibid., vol. 23, p. 461. 



678. - - 1914. On sound discrimination by cats. Jour. Animal 



Behav., vol. 4, p. 70. 



679. 1915- Some observations on the intelligence of the chim- 

 panzee. Ibid., vol. 5, p. 391. 



680. 1915- Tests on adaptive intelligence in dogs and cats as 



compared with adaptive intelligence in rhesus monkeys. 

 Am. Jour. Psych., vol. 26, p. 211. 



681. SHERRINGTON, C. S., 1906. The integrative action of the 



nervous system. New York. 



682. SHUFELDT, R. W., 1900. Notes on the psychology of fishes. 



Am. Nat., vol. 34, p. 275. 



683. SMALL, W. S., 1899. Notes on the psychic development of 



the young white rat. Am. Jour. Psych., vol. n, p. 80. 



684. - - 1899. An experimental study of the mental processes 



of the rat, I. Ibid., vol. n, p. 133. 



685. 1900. An experimental study, etc., II. Ibid., vol. 12, 



p. 206. 



