^PLATE 2 
Reaction of Marquis and Kota and of Fg families of the Marquis X Kota cross to 
biologic Form XIX. 
A. —Reaction of Marquis of types i and 2 except the leaf at the extreme left, which 
proved to have a mixture of infection types. 
B. —Reaction of Kota of type 3. 
C. —Fg family of the immune-susceptible group. 
D. —Fg heterozygous family. 
E. —Fg family of the immune-resistant group. 
