Vol. XIX JUL,Y 15, 1920 No. 8 



JOURNAL OF 



AGRICULTURAL 



RESEARCH 



CONTKNXS 



Page 



Relative Susceptibility to Citrus-Canker of Different Spe- 

 cies and Hybrids of the Genus Citrus, Including the 

 Wild Relatives --------339 



GEORGE L. PELTIER and WILLIAM J. FREDERICH 



(Contribution from Alabama Agricultural Experiment Station and 

 Bureau of Plant Industry) 



Presoak Method of Seed Treatment: A Means of Pre- 

 venting Seed Injury Due to Chemical Disinfectants and 

 of Increasing Germicidal Efficiency - - - - S63 



HARRY BRAUN 

 (Contribution from Bureau of Plant Industry) 



PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURBl 



WITH THE COOPERATION OF THE ASSOCIATION OF 



LAND-GRANT COLLEGES 



WASHINGTON, D. C. 



WAtHINQTON : QOVERNMENT MUNTINO OmOE : 1 110 



