PLANT BACTERIA. VOL. 3. 



PLATE 2. 



Cobb's disease of sugar-cane. 



Plant No 6. inoculated on the blades of two leaven by needle-pricks. Feb. 6. IQOJ, with a pure culture i>( Borttrium rauulamm 

 derived from Australian cane. The vessels of the stem from its base nearly to the terminal bud were filled with the yellow 

 bacteria. The leaf-sheaths oil the inside were also very gummy from the presence of bacterial ooze. Photographed May 190.5. 

 Variety. Common Green cane. 



