PLATE 38 
A. —Section of young leaf with stomatal infections. Bacteria have penetrated the 
intercellular spaces to the center of the leaf from the upper infection at the right. 
The cloud below the lower left infection is composed of bacteria. Stained with 
Ziehl’s carbol fuchsin. 
B. —Bacterium cannae, showing flagella. X 850. 
C. —Colonies on gelatin plate 7 days old at 15 0 to 18 0 C. X 10. 
D—Agar plate colony by direct transmitted light, showing radiating lines and 3 
buried colonies. X 10. 
p) —Same colony as in D but by oblique transmitted light, showing internal con¬ 
centric markings and radiating lines. X 10. 
