LITERATURE CITED 165 



Sherwood, E., "Hvdrogen-ion concentration as related to the Fusarium wilt 

 of tomato seedlings," Am. J. Botany, 10: 537-553, 1923. 



Sideris, C. P., "The role of the hvdrogen-ion concentration on the develop- 

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 "The effect of the H-ion concentration of the culture solution on the 

 behavior of Fusarium chromophythoron and Allium cepa and the de- 

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 1929. 



Webb, R. W., "Studies in the physiology of the fungi. X. Germination of 

 the spores of certain fungi in relation to hydrogen-ion concentration," 

 Ann. Mo. Botan. Garden, 6: 201-222, 1919. 



Webb, R. W., and H. Fellows, "The growth of Ophiobohis gramims Sacc. 

 in relation to hydrogen-ion concentration," /. Agr. Research, 33: 845- 

 872, 1936. 



"Wol^ert, F. S., "Studies in the phvsiologv of the fungi. XVII. The growth 

 of certain wood-destroving fungi in relation to the H-ion concentration 

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