PYAEMIA IN RABBITS. 



345 



Fig. 18. 



laries, and I have 

 therefore selected a 

 small vessel from the 

 cortex of the kidney 

 for delineation (Fig. 

 18) 



" In the interior of 

 the vessel, at c, is a 

 dense deposit of mi- 

 crococci adherent to 

 the wall, and enclos- 

 ing in its substance 

 a number of red blood- 

 corpuscles. This mass 

 would probably have very soon filled the calibre of the 

 vessel ; for fresh corpuscles are constantly being de- 

 posited upon it, and these become surrounded by deli- 

 cate offshoots from the mass of micrococci. From this 

 we may conclude, either that the micrococci have of 

 themselves, owing to the nature of their surface, the 

 power of causing the red blood-corpuscles, to which 

 they adhere, to stick together, or that these organisms 

 can occasion coagulation of the blood in their vicinity, 

 and thus the formation of thrombi. . . . 



" Such partial or complete thrombus formations oc- 

 cur in the renal vessels in many places, particularly in 

 the glomeruli, where individual capillary loops may 

 be found completely blocked by micrococci. ... In the 

 larger vessels, also, groups of considerable size are 

 formed, and I am disposed to believe that the large 

 metastatic deposits in the liver and in the lungs do not 

 arise by gradual growth of a mass of micrococci, but by 

 the arrest of large groups of micrococci and of clots 

 associated with them, formed in the manner described, 



