EXERCISE 



HOG CHOLERA GROUP. 



327 



Bacillus Salmonii (Tkevisan) Chestek. 



Synonyms. Hog-cholera bacillus; B. suipestifer Kruse; Bact. 

 cholera-suum Lehm. & Neum. 



Explanatory. First described by Klein, 1884, first cultivated 

 by Salmon and Smith in 1885. Occurs in blood, organs and intes- 

 tinal contents of hogs suffering from hog cholera. 



Eeperencbs. Salmon and Smith, Kept. Bureau Anim. Ind., 

 1885-91 ; C. 210 ; H. 281 ; K. & W. Ill, 622 ; L. & N. 252 ; Mig. 2, 759 ; 

 McF. 538. 



MOEPHOLOGICAL CHARACTERS : 



Sketches. 



1. Form and ark ANGEtfENT : 

 u. 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 



5. Spores: 



6. Special characters: 



(I. Capsules 



6. Involution forms 



r. Deposits or vacuoles.. 

 .?. Pleomorphism 



