128 A MANUAL OF BACTERIOLOGY 



Bockhart 1 has artificially cultivated these microbes ; 

 and has reproduced the disease by inoculation, thus 

 proving their pathogenic character. A similar micro- 

 coccus is often found in the purulent ophthalmia 

 of new-born infants ; and it is possible that such 

 ophthalmia is, in the majority of cases, of gonorrhceal 

 origin. 



* Aufrecht 2 reports the case of an infant twelve 

 days old who died with suppuration of the umbilical 

 vein and liver. The liver cells and the interlobular 

 tissue were crowded with micrococci. These micro- 

 cocci corresponded in size to Micrococcus gonorrhcece, 

 and he thinks it probable that they were derived 

 from the vagina of the mother ; during birth they 

 might have got into the umbilical vein, there caused 

 inflammation, and thence passed into the liver ' 

 (Klein). 



Microccus tetragonus. This microbe is found in 

 the sputum of patients suffering from phthisis. It 

 is only saprophytic in man, but pathogenic in 

 animals. Mice inoculated with a pure cultivation 

 of this microbe die in a few days, the microbe after- 

 wards being found in the various organs of the body. 

 Micrococcus tetragonus (Fig. 33, 14) measures 1 //, in 

 diameter, and occurs as tetrads surrounded by a 

 hyaline membrane. This microbe forms small 

 white points on nutrient gelatine in about twenty- 

 four hours, which ultimately run together. 



Micrococcus intracellularis meningitidis. This 

 microbe has been observed in the pus found at 



1 Sitzungsberichte der Pkys. Med. Gesell. Wiirzburg, 1882. 



2 CentralUattfur d. Med. Wissensch., 1883. 



