IS F7. C. Experiment Station 
20. Smith, R. E. Botrytis and Sclerotinia: Their relation to certain plant 
diseases and to each other. Bot. Gaz., v. 39, p. 369-407, figs. 3, Pis. 
25-27, 1900. 
21. Smith, C. 0. Cottony rot of lemons in California. Calif. Agr. Exp. Sta. 
Bui. 265, p. 237-258, figs. 1-11, 1916. 
22. Stewart, F. C., French, G. T., and Wilson, J. K. Troubles of Alfalfa in 
New York. Geneva Agr. Exp. Sta. Bui., 305, p. 332-416, Pis. 1-12, 
1908. 
23. Stevens, F. L. The fungi which cause plant disease. New York, p. 143, 
1913. 
24. Stevens, F. L., and Hall, J. G. A serious lettuce disease and a method of 
control. N. C. Agr. Exp. Sta. Technical Bui. 8, p. 89-143, figs. 1-29, 
1911. 
