268 BACTERIOLOGY. 



organisms with which we may come in contact in the 

 sputum of tuberculous individuals. Occasionally other 

 forms may be present. The pyogenic forms are not 

 rarely found, and for some time after diphtheria the 

 bacillus of Loffler is demonstrable in the pharynx, so 

 that it too may be present under exceptional circum- 

 stances. These latter organisms will be described under 

 their proper heads. 



