BIBLIOGRAPHY 241 



Small, J. 1920a. A theory of geotropism; with some experiments on the 

 chemical reversal of geotropic response in stem and root, New Phytol, 



19 : 49-63. 



19206. Preliminarj' notes on additional evidence for the hydrion 



differentiation theory of geotropism. New Phytol, 19: 208-212. 

 Snow, R. 1923. The conduction of geotropic excitation in roots, Ann. 



BoL, 37 : 43-53. 



, 1924a. Further experiments on the conduction of tropic excita- 

 tion, A?in. Boi., 38: 163-174. 



19246. Conduction of excitation in stem and leaf of Mimosa 



pudica, Proc. Roy. Soc. London, Ser. B. 96: 349-374. 



. 1925a. The correlative inhibition of the growth of axillary buds, 



Ann. Bot., 39: 841-859. 



. 19256. Transmission of stimuli in plants. Nature, 115 : 82-83. 



. 1925c. Conduction of excitation in the leaf of Mimosa Spegazzinii, 



Proc. Roy. Soc. London, Ser. B. 98: 188-201. 



. 1929o. The transmission of inhibition through dead stretches of 



stem, Ann. Bot., 43: 261-267. 



. 19296. The young leaf as the inhibiting organ. New Phytol, 28: 



345-358. 



. 1931o. Experiments on growth and inhibition. I. The increase 



of inhibition with distance, Proc. Roy. Soc. London, Ser. B. 108 : 209-223. 



_. 19316. Experiments on growth and inhibition. II. New phe- 

 nomena of inhibition, Proc. Roy. Soc. London, Ser. B. 108 : 305-316. 



1932a. Experiments on growth and inhibition. III. Inhibition 



and growth promotion, Proc. Roy. Soc. London, Ser. B. Ill: 86-105. 



. 19326. Growth-regulators in plants. New Phytol, 31: 336-353. 



. 1933. The nature of cambial stimulus, New Phytol, 32 : 288-296. 



. 1935a. Substances causing cambial growth, Proc. Int. Bot. 



Congress Amsterdam, 2 : 269. 

 . 19356. Activation of cambial growth by pure hormones. New 



Phytol, 34:347-360. 

 and B. Le Fanu. 1935a. Activation of cambial gro\vth, Nature, 



135: 149. 



and . 19356. Activation of cambial growth by pure 



hormones. Nature, 135 : 876. 

 SoDiNG, H. 1924. Werden von der Spitze der Haferkoleoptile Wuchs- 



hormone gebildet?, Ber. Deut. Bot. Ges., 41 : 396-400. 

 . 1925. Zur Kenntnis der Wuchshormone in der Haferkoleoptile, 



Jahrb. Wiss. BoL, 64 : 587-603. 

 . 1926. tJber den Einfluss der jungen Infloreszenz auf das Wachs- 



tum ihres Schaftes, Jahrb. Wiss. Bot., 65: 611-635. 

 . 1927. tJber Wuchshormone, Zellstimulations-forschungen, 2: 



381-392. 

 . 1929. Weitere Untersuchungen fiber die Wuchshormone der 



Haferkoleoptile, Jahrb. Wiss. Bot., 71 : 184-213. 

 . 1931. Wachstum und Wanddehnbarkeit bei der Haferkoleoptile, 



Ja;ir6. Wiss. Bot., 74: 127-151. 



