404 BACILLI OF NO KNOWN PATHOGENIC PROPERTIES. 



fields or gardens, if these specimens are either directly 

 dusted over gelatine plates, or if a watery extract of 

 the earth is made and mixed with, the gelatine. 



The following hacilli have also heen more or less 

 accurately described : 



Bienstock's bacilli from faeces. 



Bienstock's These organisms were constantly found in the faeces 

 faeces bacilli, by Bienstock. They resemble bacillus subtilis in size 

 and general appearance, but they do not possess spon- 

 taneous movement; they often form longish threads. 

 The spores appear in these threads, or even in the 

 individual rods, usually one in each rod, rarely two, the 

 spore being generally somewhat nearer one end than the 

 Morphological other. The size of the spore is about the same as that 

 characters. O f ^ Q spores of subtilis ; the whole substance of the 

 spore can be stained with warm aniline fuchsine, and is 

 not decolourised by nitric acid ; with methylene blue 

 only a faint staining of the periphery takes place. When 

 the spore sprouts the ellipsoid form becomes gradually 

 cylindrical, and the substance of the rod which com- 

 mences to form at each end gradually extends towards 

 the middle of the spore, and there becomes united 

 Cultivation, together. One of this species of bacilli grows out 

 from the line of puncture in the nutrient gelatine 

 like a mesentery; main branches of a whitish-yellow 

 colour run out into the gelatine in all directions, 

 these branches being united together by smaller anasto- 

 moses. The second species grows in the form of white 

 glistening colonies, at first smooth, but later somewhat 

 uneven on the surface, the margins of these colonies 

 showing projections like bunches of grapes; in the 

 course of 10 or 12 hours it extends over the whole 

 surface of the nutrient substratum. 



