8a 



hydrotropism or t more likely, to a disturbed geotropism 

 resulting from lack of oxygen, rather than to an actual 

 positive aerotropism. Jee Ewart ? - Trans, Liverpool 

 Eiol. 600. 8: £40 (1894); 10: 191 (1896) and Pfeffer,- 

 Physiology of Plants, vol. 3, p„ 182 (190G). 



