DIPHTHERIA GROUP CONTINUED. 



203 



Bacterium pseudodiphtheriticum (LOEFFLER) MIG. 



SYNONYMS. Pseudodipktheria bacillus of LOEFFLER; xerose ba- 

 cillus Of NEISSER-KUSCHBERT. 



EXPLANATORY. Isolated by Hoffman and others, from the 

 healthy mouth and throat; by Neisser-Kuschbert and others from 

 xerosis and other affections of the conjunctiva. This may be only a 

 non-virulent variety of Bact. diphtheriae. 



KEFERENCES. A. 401 ; C. 355 ; H. 214 ; K. & W. II, 823 ; L. & N. 

 404 ; Mig. 2, 503 ; M. & R. 370. 



MORPHOLOGICAL CHARACTERS : 



SKETCHES. 



1. FORM AND ARRANGEMENT: 



a. Bouillon 



5 . Agar 



c. 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. . 



b. Flagella stain 



5. SPORES : 



6. SPECIAL CHARACTERS: 



a. Capsules 



&. Involution forms 



c. Deposits or vacuoles,, 



d. Pleomorphism , 



