SUPPURATION, PYjEMIA, SEPTICjEMIA, ERYSIPELAS. 



177 



When a small quantity of 



an orange-yellow sediment. On potatoes and blood serum a similar 

 orange-yellow culture grows luxuriantly. They may also form 

 colourless growths in sub-cultures, and are then indistinguishable 

 from Staphylococcus pyogenes albus. The cocci do not cause any 

 septic odour in pus, nor does any gas develop. Albumin is con- 

 verted by their action into peptones. , ^ 

 They produce rapid ammoniacal fer- 

 mentation in urine (Shattock). 



The micro-organisms injected into 

 the pleura or knee of a rabbit produce, 

 as a rule, a fatal result on the following 

 day ; but if it survives longer, it eventu- 

 ally dies of severe phlegmon. If injected 

 into the knee of a dog, suppuration 

 occurs, followed by disintegration of the 

 joint. Injected into the peritoneal 

 cavity of animals, they set up perito- 

 nitis, and introduced into the jugular 

 vein thfey produce septicsemia and death, 

 a cultivation is introduced into the jugular vein after previous fracture 

 or contusion of the bones of the leg, the animal dies in about ten days, 

 and abscesses are found in and around the bones, and in some cases in 



the lungs and kidneys, 

 and the cocci are found 

 in the blood and pus. 



Garre caused sup- 

 puration by inoculating 

 a pure-culture in a 

 wound near his finger 

 nail. Bockhart suffered 



r ••/ TjJ,Ey\J0;)j from several pustules 



after vaccinating his 

 arm with a pure-culture 

 suspended in salt solu- 

 tion, and Bumm gave 

 himself a hypodermic 

 injection of a pure- 

 culture and produced 

 an abscess. This micro- 

 organism is practically ubiquitous. It has been cultivated from 

 the skin and mucous membranes and secretions of healthy persons, 

 and it occurs in the aii-, in soil, in dust, and in water, and in 



12 



Fig. 85. — Subcutaneous Tissue ov a Kabbit 48 

 Hours after an Injection of Staphylococci, 

 950 (Baumgarten). 



