PLANT BACTERIA, VOL. 2. 



PLATE 6. 



Tuberculosis of Olive. 



Shoots of olive inoculated Nov. 26. 1907, at yv by needle-pricks. A pure culture of Bact. savastanoi, 3 days old, was used. Photographed Mar. 



13, 1908. Metastatic tumors in process of development at xx. Channel of infection in vessels next to pith. 



