No. 601] RESISTANCE OF PRUNUS TO CROWN GALL 53 



TABLE I 



A Typical Experiment with Bacterium tumefadens, Culture No. 753 C 

 (July 13 to November 15, 1914), to Illustbate General Methods 

 USED IN Searching for a Resistant Stock. A Similar Experiment 



TO THIS WAS made EACH WeEK FROM MaY TO SEPTEMBER, 1914. 



