DIPLOCOCCUS GROUP CONTINUED. 



159 



Micrococcus Weichselbaumii (TREVISAN). 



SYNONYM. Diplococcus intracellularis meningitidis WEICHSEL- 

 BAUM. 



EXPLANATORY. First described in 1887 by Weichselbaum. It is 

 found in the meningeal exudate of certain cases of epidemic cerebro- 

 spinal meningitis and in nasal secretions in a number of cases. 



REFERENCES. Weichselbaum, Fortschritte der Medicin, 1887 ; 

 Councilman, Kept. Mass. State B. of H. 1898 ; A. 298 ; C. 64 ; H. 170 ; 

 K. & W. Ill, 256 ; L. & N. 148 ; Mig. 2, 189 ; McF. 281 ; M. & R. 188 ; 

 P. 516; S. 310. 



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 methylen-blue 



c. Gram's stain 



d. Special stains 



4. MOTILIT Y : 



a. Character of movement 



&. Flagella stain 



5. SPORES : 



6. SPECIAL CHARACTERS : 



a. Capsules 



&. Involution forms 



c. Deposits or vacuoles 



d. Pleomorphism 



