EXERCISE 84. DIPHTHERIA GROUP. 199 



Bacterium diphtherias (LOEFFLER) MIG. 



SYNONYMS. Bacillus diphtherias LOEFFLER; Klebs-Loeffler 

 bacillus. 



EXPLANATORY. First described in 1883 by Klebs. First culti- 

 vated in 1884 by Loeffler. Found in the false membrane* in cases of 

 diphtheria, and in small numbers in spleen, liver, etc.; occasionally 

 in healthy throats. 



REFERENCES. Klebs, Verhandl. d. Kongress fuer innere Medi- 

 zin, 1883 ? II; Loeffler, Mitth. aus dem Kaiserl. Gesundheitsamte, 

 1884, 2, 421 ; A. 386 ; C. 354 ; Fl. 2, 460 ; H. 194 ; K. & W. II. 759 ; 

 L. & K. 207 ; L. & N. 389 ; Mig. 2, 499 ; M. & R. 356 ; M. & W. 137 ; 

 McF. 410 ; P. 229. 



MORPHOLOGICAL, CHARACTERS: SKETCHES. 



1. FORM AND ARRANGEMENT: 



a. Bouillon 



&. Agar 



c. Gelatin 



d. Other media 



2. SIZE: 



3. STAINING POWERS: 



a. Aqueous gentian- violet 



&. Loeffler's methyien-blue 



c. Gram's stain 



(/. Special stains 



4. MOTILIT Y : 



a. Character of movement 



&. Flagella stain 



5. SPORES : 



6. SPECIAL. CHARACTERS : 



a. Capsules 



&. Involution forms 



c. Deposits or vacuoles 



