vii.] MICROCOCCUS. 45 



Wassilieff 1 has shown that these micrococci only occur after 

 the death of the tissue or tissues, that in these they may 

 multiply so as to form extensive colonies, and that therefore the 

 presence of these micrococci is only a secondary phenomenon. 



Flo. 16. CAPILLARY BLOOD-VESSELS OF NECROTIC MASSES FROM THE LIVER 

 OF A MOUSE. THE CAPILLARIES ARE DISTENDED BY, AND FILLED WITH, 

 ZOOOLCEA OF MICROCOCCI. 



In pneumonia accompanying certain infectious maladies, e.g. 

 typhoid fever, tuberculosis, and even in severe catarrhal pneu- 

 monia, large masses of micrococci may occur in the air-cells. 



FIG 17. FROM A PREPARATION OF THE BLOOD OF A CHILD ILL WITH 

 INFANTILE DIARRHCEA. 



1. Blood-discs. 



2. Dumb-bells of micrococcl. 



In those cases where lobules and whole lobes become trans- 

 formed into solid vStructures grey hepatisation masses of 

 micrococci may be found in the air-cells, and even growing into 

 the blood-vessels in which stasis had set in. Such is the case 



1 Centralblattf. d. med. Wiss. No. 52, 1881. 



