40 



BACTERIAL DISEASES OF PLANTS 



Fig. 26.—^, rilm of Backroum lachnjinuus iliKitiii- on Colin's .sohition and full 

 of crystals. Inoculated November 23. Photographed November 28, 1914. X 13. 

 B. Bottom of an agar slant culture of Bacterium solanacearum from Tropaeolum, 

 showing crystals formed in the agar. Slant at S. Photographed September 23, 

 1914. X 7. ^ 



