148 EXPERIMENT STATION. [Jan. 



to employ sanitary methods in growing the cro}i, to nse seed 

 from healthy and vigorous i)lants, and try to prevent injuries 

 from insects, etc. 



Additional References. 

 Reed, Science, ii. s.. Vol. 31, p. 038, 1910. 

 Cooke, Grevielea, Vol. 5, p. 123, 1877. 

 Tnbeuf & Smith, " Diseases of Plants," p. 51(i, 1897. 

 "Market Gardener's Journal" (Louisville, Ky.), Vol. 7, No. 5, 1910. 



