BY R. GREIG SMITH. 121 



would be unwise. The definition requires modification to enable 

 it to include organisms such as these which develop l^ranching 

 capsules. That the branching is caused by the capsules, and not bv 

 the simple organisms, can be seen from the plates which accompany 

 this paper as well as my paper on " The Nodule Organism of the 

 Leguminosse." 



EXPLANATION OF PLATE. 



Vibrio (Mycohacterium) denitrificans. 



Film from a 48 hours' culture in peptone-giucose-gelatine ( x 1000; the 

 enlarged marginal illustrations are diagrammatic). 



