EXERCISE 77. MALTA FEVER GROUP. 153 



Micrococcus melitensis BRUCE. 



EXPLANATORY. This organism is the cause of Malta fever and 

 is found especially in the spleen of the diseased. 



REFERENCES. Bruce, Practitioner, Sept. 1887 and Ann. de 

 1'Inst. Pasteur, 1893, 7, 289; Durham, Jour. Path, and Bact., 1898, 

 5, 377 ; H. 441 ; K. & W. Ill, 438 ; L. & N. 168 ; Mig. 2, 83 ; McF. 581 ; 

 M. & R. 452. 



MORPHOLOGICAL CHARACTERS: 



SKETCHES. 



1. FORM AND ARRANGEMENT: 

 a. Bouillon 



I. Agar 



c. Gelatin. 



d. Other media.. 



2. SIZE: 



3. STAINING POWERS : 



a. Aqueous gentian- violet. . 



b. Loeffler's methylen-blue. 



c. Gram's stain 



d. Special stains 



4. MOTILITY : 



a. Character of movement.. 



b. Flagella stain 



5. SPORES: 



& SPECIAL CHARACTERS: 



a. Capsules 



b. Involution forms , 



c. Deposits or vacuoles.. 



d. Pleomorphism 



