PLANT BACTERIA, VOL. 3. 



PLATE 12. 



Grand Rapids tomato disease. 



Plant! Nos. 10 and 17 inoculated by needle-pricks with a pure culture of Aplanobacttr michitaiunsi at X on the stem Oct. 5. 1909. 

 in the hot-house. Photograph* Nov. 16. 1909. showing slow progress o( the dis< 



