58 



BACTERIOLOGY. 



of the same diameter in all directions. (See Fig. 2, a, 

 b, <, (1, e.) 



FIG. 2. 



00 

 00 ,o % <*> oO 



n. Staphylococci. 6. Streptococci, c. Diplococci. d. Tetrads, e. Sarcinse. 



FIG. 3. 



\ 



rf e / 



a. Bacilli in pairs. 6. Single bacilli, cand d. Bacilli in threads. 

 e and /. Bacilli of variable morphology. 



FIG. 4. 



P, 



s 



a b c fl 



annd rf. Spirilla in short segments and longer threads the so-called comma 

 forms and spirals, b. The forms known as spirochseta. c. The thick spirals 

 sometimes known as vibrios. 



