TYPHOID GROUP CONTINUED. 239 



Bacillus dysenteriae SHIGA. 

 SYNONYM. Bacillus of Japanese dysentery, SHIGA. 



EXPLANATORY, First described by Shiga, who found it causally 

 related to a dysentery epidemic ; Flexner has more recently found it 

 in the Philippines and elsewhere. 



REFERENCES. Shiga, C. f . B., 1898, 23 ; 599 and 24 : 817, 870 and 

 913 ; Eldridge, Public Health Repts., 1900, 15 ; p. 1, Flexner, Phil. 

 Med. Jour. 1900, Sept. 1 ; A. 440 ; C. 228. K. & W. II, 317 ; M. & R. 

 350 ; McF. 519. 



MORPHOLOGICAL CHARACTERS: i SKETCHES. 



1. FORM AND ARRANGEMENT: 



a. Bouillon 



b. Agar.. 



. Gelatin. 



d. Other media.. 



2. SIZE: 



3. STAINING POWERS: 



a. Aqueous gentian- violet. . 

 6. Loeffler's methylen-blue. 



c. Gram's stain 



d. Special stains 



4. MOTILITY : 



a. Character of movement. . 

 6. Flagella stain 



SPORES: 



f. SPECIAL CHARACTERS: 



a. Capsules 



&. Involution forms 



c. Deposits or vacuoles. 



d. Pleomorphism 



