390 S. O. MAST 



LITERATURE CITED 



Krabbe, G. 1896 tjber den Einfluss der Temparatur auf die osmotischen Pro- 



zesse lebender Zellen. Jahrb. f. wiss. Bot., Bd. 29, S. 441-498. 

 Laurens, H, and Hooker, H. D. 1918 The relative sensitivity of Volvox to 



spectral lights of equal radiant energy content. Anat. Rec, vol. 14, 



pp. 97-98. 

 LiLLiE, R. S. 1909 On the connection between stimulation and changes in the 



permeabilty of the plasma membranes of the irritable elements. Sci., 



vol. 30, pp. 245-249. 

 Mast, S. O. 1907 Light reactions in lower organisms. II. Volvox. Jour. 



Comp. Neur. and Psy., vol. 17, pp. 9^180. 



1911 Light and the behavior of organisms. New York, 386 pp. 



1917 The relation between spectral color and stimulation in the lower 

 organisms. Jour. Exp. Zool., vol. 22, pp. 471-528. 



1918 Effect of chemicals on reversion in orientation to light in the 

 colonial form, Spondylomorum quarternarium. Jour. Exp. Zool., vol. 

 26, pp. 503-520. 



McClendon, J. F. 1917 Physical chemistry of vital phenomena. Princeton, 



240 pp. 

 OsTERHOUT, W. J. V. 1913 The effect of anesthetics upon permeability. Sci., 



vol. 37, pp. 111-112. 

 Rtsselberghe, Fr. van 1902 Influence de la temperature sur la permeabilite 



du protoplasme vivant pour I'eau et les substances dissoutes. Rec. de 



I'Inst. bot., Univ. de Brux., T. 5, p. 207. 

 Trondle, a. 1910 Der Einfluss des Lichtes auf die Permeabilittit der Plasma- 



haut. Jahrb. f. wiss. Bot., Bd. 48, S. 170-282. 



Numerous other references on this subject may be found in Washburn, Animal 

 Mind, 917, pp. 200-214; Holmes, Studies in Animal Behavior, 1916, pp. 116-119, 

 and Mast, Light and the behavior of organisms, 1911, pp 264-287. 



