A. —View of a typical anthracnose inoculation experiment in the greenhouse, showing arrange¬ 
ment and size of plants at the time of inoculation. The farther end of the bench has already 
been sprayed with the inoculum and covered with wet burlap-lined sashes 
B. —Results of an anthracnose inoculation experiment on seedlings in the greenhouse, illustrating 
immunity and extreme susceptibility among five varieties of African beans. The varieties 
used in this test were planted Feb. 13, inoculated with a heavy spore suspension of the alpha 
biologic form of Colletotrichum lindemuthianum Feb. 26,and photographed 10 days later, Mar. 8,1923. 
