240 



PATHOGENIC BACTERIA. 



presence of a small motile bacillus which could easily be 

 stained by ordinary methods (Fig. 64). When introduced 



FIG. 64. Bacillus pseudo-tuberculosis from agar-agar ; x 1000 (Itzerott and 



Niemann). 



subcutaneously into guinea-pigs the original disease was 

 produced. 



Pseudo-tuberculosis seems to be an indefinite affection 

 of which we have very little knowledge, and which is 

 certainly in no way connected with or related to true 

 tuberculosis. 



