MICROCOCCI PATHOGENIC IN THE LOWER ANIMALS. 211 



tonitis, metastatic deposits in the lungs and liver in 

 short the appearances of pyaemia. In the capillaries of 

 all the organs investigated dense micrococcal masses, 

 with enclosed blood corpuscles, 

 were found ; likewise in the me- 

 tastatic deposits, where they had 

 passed out of the vessels and at- 

 tacked the neighbouring tissues. 

 In the blood of the heart and of 

 the larger vessels numerous micro- 

 cocci were likewise present, but, 

 in consequence of the numerous 

 thrombi, they were not so numer- 

 ous as in other septicaemic diseases. 



TT ,,, , , .. . f . n Fig. 54. Micrococcus of 



Healthy rabbits were infected sue- pysemia in rabbits 

 cessfully by inoculation of blood ir C^ter Koch) x TOO. 



J J Vessel from the cortical 



from the heart, &c., but larger 



part of the kidney : 

 u. nuclei of the vascular 



wall. 

 b, micrococci. 



doses (1 3 drops) caused death 



more rapidly (40 hours) than 



small quantities ( T V) drop), on account of the relatively 



small numbers of cocci in the circulating blood. 



Micrococcus of Septiccemia in Rabbits (compare above 

 Streptococcus Charrin). Oval cells, 0'8 1*0 /*. in 

 greatest diameter. They do not cause coagulation in 

 the blood, and never enclose the blood corpuscles, but 



Fig. 55. Micrococcus of septicaemia in rabbits (after Koch) X 7CO. 



Part of a glomerulus : 



At a the capillary vessel with micrococci. 



push them to one side (fig. 55). The disease was 

 obtained by Koch by injection of meat infusion ; after 



