PLATE 59 
A. —First to wilt of 12 Ricinus plants inoculated July 2 at X X with 24-hour potato 
subculture from inoculated tomato No. 1. This plant when photographed was 6 
inches high, while the control plants were 18 inches high. The other n inoculated 
plants were as badly dwarfed as this one, and all of them finally developed wilt. 
Bacteria were abundant in the vessels of the stem. Photographed July 25, 1918, 
nearly natural size. 
B. —Cross section of middle of stem in an inoculated sunflower, showing the bac¬ 
terial ooze from the vascular system. X 5. 
