PLATE 25 
A. —Potato stems, showing the nature of the lesions from which isolations of 
Rhizoctonia solani were made. 
B. —Potato stems, showing the results of one series of inoculations. Three stems 
to the left were inoculated with strain R5, the next two inoculated with Ri and R2, 
and the stem to the extreme right an injured control. The inoculations were made 
on August 14,1916, and the photograph was taken on September 4, 1916. 
