CHAPTER XIV. 



THE OEGANISMS OF SUPPUEATION. 



Although it has been proved that chemical com- 

 pounds of various kinds, such as croton oil, turpen- 

 tine, or quicksilvei", if aseptically introduced into 

 living animal tissues may produce suppuration, yet 

 such cases as these are quite unusual, and are only 

 produced artificially. As a general rule it may be 

 stated that suppuration is connected with the presence 

 of bacteria; yet apparently, however, the power of 

 causing suppuration is not confined to one specific 

 kind, but is common to a great number of species, 

 the most interesting and important of which are de- 

 scribed in the following pages, the methods of 

 cultivating and demonstrating them bein'g entered 

 into with some detail. In addition to these specific 

 suppuration bacteria there are a good number which 

 are more rarely met with, or which only occasionally 

 cause suppuration. 



1. Staphylococcus pyogenes aureus. 



This organism is the one most frequently met with, 

 and apparently it is also widely distributed in nature, 

 for it has been demonstrated several times in the dust 



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