94 LABORATORY BACTERIOLOGY 
EXERCISE XXXVII 
IDENTIFYING BACTERIA FROM CULTURES 
143. The two cultures of bacteria assigned for identification 
belong to species already studied, and the student should 
identify the species of bacteria in them. To do this such 
media should be inoculated and such microscopic examina- 
tions made as he thinks necessary. The notes should contain 
a complete record of the work and the reasons for the identi- 
fications made. This exercise affords a good opportunity to 
begin the use of manuals and text-books in identifying species. 
144. Work for this exercise. Identify the bacteria in the 
cultures assigned at the last exercise. Use any method which 
seems to be necessary. In the laboratory notes give reasons 
for the procedure adopted. 
Reéxamine and reject the cultures on hand. 
