"ROOT-PRESSURE" — WHITE 497 



REFERENCES 



ASKENAZY, E. 



1895. Ueber das Saftsteigen. Verh. Datur. med. Ver. Heidelberg, n. f., 

 vol. 5, pp. 325-345. 

 Dixon, H. H., and Jolt, J. 



1895. On the ascent of sap. Phil. Trans. Roy. Soc. London, B 186; pp. 

 563-576. 

 Hales, S. 



1727. Vegetable staticks, or an account of some statical experiments on 

 the sap in vegetables. J. Peele, London. 

 Hetl, J. G. 



1933. Der Einfluss von Aussenfaktoren auf das Bluten der Pflanzen. Planta, 

 vol. 20, pp. 294-353. 

 Knight, T. A. 



1801. Account of some experiments on the ascent of the sap in trees. Phil. 

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 Molisch, H. 



1902. Ueber localen Blutungsdruck und seine Ursachen. Bot. Zeit., vol. 

 60, pp. 45-63. 

 Priestly, J. H. 



1935. Sap ascent in the tree. Science Progress, vol. 117, pp. 42-56. 

 Ursprtjng, A. 



1906. Die Beteiligung lebender Zellen am Saftsteigen. Jahrb. Wiss. Bot., 

 vol. 42, pp. 503-544. 

 White, P. R. 



1936. Root-pressure developed in isolated tomato roots growing in vitro. 



Paper presented before Amer. Soc. Plant Physiol., Atlantic City, 

 Dec. 1936. 



1937. Seasonal fluctuations in growth rates of excised tomato root tips. 



Plant Physiol., vol. 12, pp. 183-190. 



