MICROCOCCI PATHOGENIC IN MAN. 



187 



Fig. 43. Pus containing 

 staphylococcus X 800. 



tion in practice bacteria are the causal agents, and some 

 forms of suppuration are more especially caused by 

 staphylococcus aureus. This organism causes rapid 

 suppurative destruction of the 

 tissue, and it excites suppura- 

 tive phlegmons which spread 

 more in the tissue than in the 

 lymphatic vessels. Hence it 

 is found more especially in 

 acute abscesses, in empyema, 

 and in boils ; further, in acute 

 osteomyelitis, although the 

 above mentioned experiments 

 in animals have not demon- 

 strated with absolute certainty the causal role of this 

 fungus in that disease. Lastly, it occurs at times in 

 some severe diseases, accompanied by metastases, in 

 pyaBmia, and in ulcerative endocarditis. According to 

 the point of entrance of the fungus into the body, and 

 according to the numbers which enter, affections of very 

 different severity may follow. That in reality the staphy- 

 lococcus cultivated from pus from osteomyelitis is also 

 the exciting cause of furuncular inflammation has been 

 proved recently by an experiment made by Garre on 

 himself, where a culture of staphylococcus, originating 

 from the pus from osteomyelitis, was rubbed into the com- 

 pletely intact skin of the arm, and where the organisms 

 penetrating through canals of the cutaneous glands, 

 set up furuncles over a large extent of the surface. 



Staphylococcus pyogenes albus. 



Found frequently by Rosenbach in pus along with 

 staphyl. aureus. Corresponds in microscopical appear- 

 ance, in the characters of its cultivations, and in its 

 relation to animals, with staphyl. aureus, the only 

 difference being that its colonies remain white even 

 after a long time ; in old gelatine cultivations a white 

 deposit is seen at the bottom of the liquefied mass. 

 According to Passet, staphyl. albus occurs more fre- 



