PLATE IV. 
ui.ure. 
icu 
S. Dept. of Agri 
U. 
684 
Bui 
ASS 
~ 
y 
Rot CANKER-ARTIFICIALLY PRODUCED ON A YOUNG 
BITTER 
SECTION THROUGH A 
BRANCH OF A BEN DAViS APPLE TREE. 
ead bark remains 
The 
32. 
S 
t is shown in the formation of a callu 
attached to the dead and shrunken wooed. 
Ss 
The reaction of the ho 
layer. 
