TYPHOID GROUP CONTINUED. 

 Bacillus pestis (LEHM. & NEUM.) CHESTER. 



S43 



SYNONYMS. Bacterium pestis LEHM. & NEUM. ; Bacillus pestis- 

 bubonicae KRUSE ; Bacillus of bubonic plague. 



EXPLANATORY. Described at about the same time independently 

 by Kitasato and Yersin in 1894. Found in the buboes, and occa- 

 sionally in the feces, urine and blood and, in the pneumonic form, 

 in the sputum. 



REFERENCES. Kitasato, Lancet, 1894, 2, 428 ; Yersin, Ann. Inst. 

 Past., 1894, 8, 662 ; A. 310 ; C. 215 ; H. 291 ; K. & W. II, 475 ; M. & R. 

 435 ; L. & N. 213 ; Mig. 2, 749 ; McF. 559 ; P. 606. 



MORPHOLOGICAL CHARACTERS: SKETCHES 



1. FORM AND ARRANGEMENT: 



a. Bouillon 



&. Agar 



c. Gelatin 



a. Other media 



2. SIZE : 



3. STAINING POWERS : 



a. Aqueous gentian- violet 



b. Loeffler's methylen-blue 



c. Gram's stain 



d. Special stains 



4. MOTILIT Y : 



a. Character of movement 



&. Flagella stain 



5. SPORES : 



6. SPECIAL CHARACTERS : , 



a. Capsules 



6. Involution forms 



c. Deposits or vacuoles 



<l. Pleomorphism 



