t6o clinical bacteriology and hematology 



found from the commotion they cause by pushing aside the red 

 corpuscles. 



II. The gomcoccns has been found in the blood in a few cases 

 of ulcerative endocarditis. Its detection by cultural methods is 

 difficult, and the services of a bacteriological expert should be 

 called. We may point out that ulcerative endocarditis, septicaemia, 

 etc., supervening in the course of an attack of gonorrhoea, are 



Fig. 29, — Spirillum of Relapsing Fever. 



not necessarily due to the gonococcus. Any pathogenic bacteria 

 may enter through the lesion of the mucous membrane which the 

 gonococcus has caused. 



12. The B. coli is present in some cases of septicsemia. 



EXAMINATION FOR BACTERIA IN FILMS 



This is the easiest method in which bacteria may be found in 

 the blood, and it does not require such a rigid antiseptic technique 

 as is necessary if cultures are to be taken ; but the results, except 

 in a few cases, are much less useful, since it is very rare for most 

 bacteria to occur in the blood in numbers sufficient to render the 

 chance of finding them in films at all promising. It is sufficient 

 (indeed, the only method available) in malaria and relapsing 

 fe^ er, and it may lead to the discovery of the organism in plague, 

 anthrax, and a few other infections; but in general cultural 



