152 CLINICAL BACTERIOLOGY AND H^MATOLOGY 



bacilli in this pus if it is examined when the ahscess is first 

 opened, whereas afterwards none may be found after a very 

 long and painstaking search. 



The bacillus of glanders only causes suppuration in the 

 specific lesions of the disease when these run an acute 

 course. 



The B. coli communis is the chief cause of suppuration 

 occurring in connection with the abdominal viscera, especially 

 of peritonitis due to perforation of the intestine and appen- 

 dicitis. It frequently attacks the urinary passages, causing 

 cystitis, etc. 



Vaccine Treatment. See p. 167. 



The B. pyocyaneus causes blue pus, usually in connection 

 with the skin or subcutaneous tissues. 



The fungus of act hi o my cos is has been dealt with already. 



THE BACTERIOLOGICAL EXAMINATION OF THE 

 MOUTH AND FAUCES 



The method of examination of the morbid products of the 

 mouth and fauces in diphtheria has been explained in full, and 

 the methods which are used in other conditions are similar in 

 nature. 



The more important of these allied conditions are : 



Simple angina and follicular tonsillitis. 



Vincent's angina. 



Scarlatinal angina. 



Thrush. 



Syphilitic angina. 



Methods. An examination of a film stained by a simple 

 stain, and of a second prepared by Gram's method, is usually 

 all that is necessary, but it is advisable to be prepared to make 

 cultures subsequently if thought requisite. If the patient is 

 seen at some distance from the laboratory, the material is 

 best collected on a sterilized swab such as is used for diph- 

 theria in the method described on p. 40, taking great care to 

 rub it on the affected area. When this is brought to the 

 laboratory, two smears are to be made on slides which have 

 just been sterilized by being heated in the flame, and which 

 have been allowed to cool. As soon as the films have been 

 prepared the swab is to be returned to its sterile tube and kept 



