662 



Journal of Agricultural Research 



Vol. XV. No. i» 



with the twig also a small piece of moistened cotton. Control needle 

 punctures with tap water were made for each host plant, and the moist 

 condition was also maintained with paraffin paper and moist cotton. 

 Unless otherwise noted, the positive results observed here occurred only 

 at needle punctures. 



Table I. — Summary of results of inoculations on plants of Rutaceae 



