nnuPACEOus fruits 



131 



apple ^ can be produced by inoculation with Pseudomonas 

 tumefaciens, also that the organisms of the peach, apple, 

 hop, rose, and chestnut galls are interchangeable. It is 



1 Smith & Townsend, Sci. n. s. 25, 671, April, 1907, and Sci. n. s. 29, 273. 



