CHAPTER XX 



MISCELLANEOUS BACTERIA 

 Inoculate agar-slants from stock-cultures of Bacillus 

 mallei and Micrococcus melitensis. Exercise great 

 caution in handling B. mallei. 



1. Routine study. — Note especially the growth of 

 B. mallei on potato. Also note the morphology of Micr. 

 melitensis and the staining properties of B. mallei. Is B. 

 mallei motile ? 



2. Special study. — Intraperitoneal injection of B. 

 mallei from a broth-cultiure into a male guinea-pig. Why 

 do you select a male guinea-pig? What is Straus's 

 method of diagnosis of glanders? 



i6s 



