68 Studies in Animal Behavior 



REFERENCES 



BoHN, G. (i) La naissance de 1' intelligence, 

 Paris, 1909; (2) La nouvelle psychologic animale, 

 Paris, 191 1. 



Cole, L. J. An experimental study of the im- 

 age-forming power of various types of eyes. Proc. 

 Am. Acad. Arts and Sciences, 42, 335, 1907. 



Gee, W. The behavior of leeches with special 

 reference to its modifiability. Univ. of Calif. Pubs. 

 Zool., II, 197, 1913. 



Holmes, S. J. (i) Phototaxis in the amphi- 

 poda. Am. Jour. Physiol., 5, 211, 1901; (2) The 

 reactions of Ranatra to light. Jour. Comp. Neur. 

 Psych., 15, 305, 1905. 



LoEB, J. (i) Der Heliotropismus der Tiere 

 und seine Uebereinstimmung mit dem Heliotropis- 

 mus der Pflanzen. Wiirzburg, 1890; (2) The 

 mechanistic conception of life. Chicago, 1912. 



Lyon, E. P. On Rheotropism. I, Rheotropism 

 in fishes. Am. Jour. Physiol., 12, 149, 1904. 



Mast, S. O. Light and the behavior of organ- 

 isms. N. Y., 191 1. 



Radl, E. Untersuohungen iiber den Phototropis- 

 mus der Tiere. Leipzig, 1903. 



RoYCE, J. Outlines of Psychology. N. Y., 1903. 



Washburn, M. F. The animal mind. N.Y., 1909. 



Wodsedalek, J. E. Formation of associations 

 in the May-fly nymphs Heptagenia interpunctata 

 (Say). Jour. Animal Behavior, 2, i, I912. 



