BIBLIOGRAPHY 381 



, 1899. Bees and the Origin of Flowers. Nat. Sci., Vol. 14, pp. 128- 



130. 

 BuNSEN, R., and Roscoe, H. E., 1859. Photochemischer Untersuchungen, 



V. Die Sonne. Poggendorff's Annalen, Vol. 108, pp. 193-273. 

 Buttel-Reepen, H. v., 1907. Are Bees Reflex Machines? Experimental 



Contribution to the Natural History of the Honey-bee. Translated 



by Mary H. Geisler. Published by A. I. Root Co., Medina, O. 48 pp. 



Original in Biol. Cent., 1900, Vol. 20. 

 Byk, a. v., 1908. Die Fortschritte der Photochemie im Jahre 1908. Zeit- 



schrift f. Elektrochemie, Bd. 15, pp. 331-338. 

 Candolle, a. p. de, 1832. Physiologic vegetal. A German trans, by 



Roper, pub. in 1835. 

 Carpenter, F. W., 1905. Reactions of the Pomace Fly Drosophila am- 



pelophila Loew to Light, Gravity, and Mechanical Stimulation. Amer. 



Nat, Vol. 39, pp. 157-171- 

 , 1908. Some Reactions of Drosophila, with Special Reference to 



Convulsive Reflexes. Jour. Comp. Neur. and Psych., Vol. 18, pp. 483- 



491. 

 Ciesielski, T., 1875. Untersuchungen iiber die Abwartskriimmung der 



Wurzel. Cohn's Beitrage z. Biol., \'ol. i, pp. 1-30. 

 Clap.^rede, E., 1868. Annelides Chetopodes du Golfes de Naples. 

 CoHN, F., 1865. Uber die Gesetze der Bewegung mikroscopischer Thiere 

 und Pflanzen unter Einfluss des Lichtes. Jahresber. d. Schles. Ges. f. 

 Vaterl. Cult., Vol. 42, pp. 35-36. 

 Cole, L. J., 1901. Notes on the Habits of Pycnogonids. Biol. Bull., 



Vol. 2, pp. 195-207. 

 , 1907. Influence of Direction z'^-. Intensity of Light in Determining 



the Phototropic Responses of Organisms. Abstract in Jour. Comp. 



Neur. and Psych., Vol. 17, p. 193. 



1907a. An Experimental Study of the Image-forming Power of 



Various T^-pes of Eyes. Proc. Amer. Acad. Arts and Sci., Vol. 42, pp. 



335-417- 

 Cole, L. W., 1907. Concerning the Intelligence of Raccoons. Jour. Comp. 



Neur. and Psych., Vol. 17, pp. 211-261. 

 CoNGDON, E. D., 1908. Recent Studies upon the Locomotor Responses of 



Animals to White Light. Jour. Comp. Neur. and Psych., Vol. 18, 



pp. 309-328. 

 Cowles, R. p. Reaction to Light and Other Points in the Behavior of the 



Starfish. To appear in Publication of the Carnegie Institution of 



Washington. 

 . Stimuli Produced by Light and -by Contact with Solid Walls as 



Factors in the Behavior of Ophiuroids. To appear in Jour. Exp. Zool., 



Brooks Memorial Volume. 

 Czapek, F., 1895. Uber den Nachweis der geotropischen Sensibilitat der 



Wurzelspitze. Jahrb. f. wiss. Bot., Bd. 27, pp. 311-366. 

 , 1898. Weitere Beitrage zur Kenntniss der geotropischen Reiz- 



bewegungen. Ibid., Bd. 32, pp. 175-308. 

 , 1900. Untersuchungen iiber Geotropismus. Ibid., Bd. 35, pp. 



243-339- 



Dalyell, Sir J. G., 1853. The Powers of the Creator Revealed. London. 



Darwin, C, 1876. The Effect of Cross- and Self-fertilization in the Vege- 

 table Kingdom. London. 482 pp. 



, 1 88 1. The Formation of Vegetable ISIold through the Action of 



Worms, with Observations on their Habits. New York. 326 pp. 



