LESIONS IN THE HUMAN SUBJECT. 



179 



most frequently present in acute catarrhal inflammations of 

 this situation. In puerperal peritonitis they are frequently 

 found in a condition 

 of purity, and they 

 also appear to be the 

 most frequent cause 

 of puerperal septi- 

 caemia, in which con- 

 dition they may be 

 found after death in 

 the capillaries of 

 various organs, though 

 examination of the 

 blood during life 

 usually gives a nega- 

 tive result. In py- 

 aemia they are fre- 

 quently present, 

 though in most cases 

 associated with other 

 pyogenic organisms. Some cases of enteritis in infants 

 streptococcic enteritis are also apparently due to a 

 streptococcus, which, however, presents in cultures certain 

 points of difference from the streptococcus pyogenes. 



The bacillus coli communis is found in a great many 

 inflammatory and suppurative conditions in connection with 

 the alimentary tract for example, in suppuration in the 

 peritoneum or in the extraperitoneal tissue with or with- 

 out perforation of the bowel, in the peritonitis following 

 strangulation of the bowel, in appendicitis and the lesions 

 following it, in suppuration around the bile ducts, etc. It 

 may also occur in lesions in other parts of the body, endo- 

 carditis, pleurisy, etc., which in some cases are associ- 

 ated with lesions of the intestine, though in others such 

 cannot be found. It is also frequently present in inflam- 

 mation of the urinary passages, cystitis, pyelitis, abscesses 

 in the kidneys, etc., these lesions being in fact most fre- 

 quently caused by this organism. 



FIG. 50. Streptococci in acute suppuration. 

 Corrosive film ; stained by Gram's method 

 and safranin. x 1000. 



