78 LABORATORY BACTERIOLOGY, 
EXERCISE XXVII 
BACTERIUM MALLEI (continued) 
117. Work for this exercise. Examine and carefully describe 
all the cultures of Bact. mallet. 
Make 2 cover-glass preparations from the acid glycerin 
agar and from the bouillon cultures, and stain one of each 
with alkaline methylene blue and one with carbol fuchsin. 
Describe the bacteria and make a drawing of a few of them. 
Preserve one preparation. Keep the cultures and reéxamine 
them at each of the three following exercises. Note especially 
the character and color of the growth on the- potato and in the 
acid glycerin bouillon. 
Examine carefully the lesions produced by the inoculation of 
Bact. mallet ina male guinea pig (Straus’ method of diagnosing 
glanders). 
