PLATE 58 
A, B.—First four seedling plants to become diseased when inoculated with the 
Ricinus parasite. Normal control plants in the background. All the inoculated 
plants are badly dwarfed, but one is not yet wilting. All were inoculated June 26 
by needle pricks on the base of the hypocotyl just as the seedling was emerging from 
the soil. Photographed July 8, 1918. In B the bacteria had penetrated into the 
vessels of the tap root 2 % inches from the point of inoculation. 
