PSEUDODIPHTHERTA BACILLUS. 249 



theritic membrane, in healthy throats, in the nose, on the skin, 

 and on the conjunctivas, especially in xerosis conjunctivse. 

 It has also been found in ^impetigo, acne, pustules of variola, 

 in gangrene of the lung, and in pneumonia. The pseudo- 

 diphtheria bacillus does not elaborate a_toxin. It is not 

 virulent. 



