THE PATHOGENIC MICROCOCCL 117 



QUESTIONS. 



What are the pyococci ? 



Describe the Staphylococcus pyogenes aureus. How does it act on bouillon, 

 on gelatin, on agar ? 



Where is this organism found in the human body ? Where outside of the 

 human body ? 



What is the effect on animals of intravenous injections of this organism? 

 What of subcutaneous inoculation ? 



In what respect does the Staphylococcus pyogenes albus differ from the 

 aureus? The Staphylococcus pyogenes citreus? 



Describe the streptococcus pyogenes. Where is it found ? Of how many 

 elements are its chains formed ? What is the effect of intravenous, intra- 

 peritoneal, and subcutaneous inoculations ? 



What are the characteristics of the Micrococcus tetragenus f 



What is the gonococcus? Where is it found ? How is it recognized under 

 the microscope ? What is Wertheim's method of growing gonococcus ? 



What is the Micrococcus cafcarrhalis? Where is it found ? How is it dif- 

 ferentiated from the gonococcus ? How is it differentiated from the Micro- 

 coccus meningitidis ? 



What media are best suited for its growth ? How is it differentiated from 

 other pus cocci ? 



What other bacteria cause suppuration or are found in pure cultures in 

 abscesses ? 



CHAPTER X. 



THE OTHER PATHOGENIC MICROCOCCI AND ALLIED 

 BACILLI MICROCOCCUS PNEUMONIA, EPIDEMIC 

 CEREBROSPINAL MENINGITIS, AND MALTA FEVER. 



PNEUMONIA. 



I. Micrococcus Pneumoniae Crouposae (Diplococcus 

 Pneumonia ; Micrococcus Pasteuri ; Micrococcus 

 of Sputum Septicaemia). 



History. The Micrococcus pneumonice crouposce was discov- 

 ered in September, 1880, by Sternberg, in the blood of rabbits 

 which he had inoculated subcutaneously with his own saliva ; 

 also by Pasteur, in December, 1880, in the saliva of a child 

 who had died of pneumonia in a Paris hospital. This was 

 confirmed and studied by Fraenkel, Weichselbaum, and others. 



