CLASSIFICATION OF THE BACTERIA. 97 



M. gregarium^ Cohn. 



Unique species found on the surface of a putrefying 

 infusion. 



g. Cladothrix, Cohn. 



Filaments in form of leptothrix, very slender, color- 

 less, not articulated, rigid or a little undulating, falsely 

 dichotomous. 



Cl. dichotomy Cohn. In foul water, 

 g. Streptothriz, Cohn. 



Filaments in form of leptothrix, very slender, color- 

 less, not articulated, straight or slightly spiral, a little 

 branched. 



Str. Fcersteri, Cohn. 



In concretions in the lachrymal canal of man. 



