STUDY OF PERMANENT PREPARATIONS 107 
EXERCISE XLV 
EXAMINATION OF CERTAIN BACTERIA, FUNGI, AND 
PROTOZOA NOT STUDIED IN OTHER EXERCISES 
161. This exercise will be devoted to a study of prepara- 
tions of important bacteria, fungi, and pathogenic protozoa not 
cultivated in the laboratory. Unfortunately the number neces- 
sarily omitted is large. This demonstration, however, will aid 
in fixing in the mind an idea of the morphology of these forms, 
which may be of some assistance. Certain of the pathogenic 
fungi and protozoa, such as the ray fungus of actinomycosis, 
the piroplasma of Texas fever in cattle, and the plasmodium 
of malaria in man, will be demonstrated. The trypanosomes 
of surra or dourine, which cannot be studied experimentally 
in the time allowed; may be examined microscopically from 
permanent preparations. 
162. Work for this exercise. Examine and make drawings 
of bacteria, fungi, and protozoa demonstrated in the prepara- 
tions furnished. 
