464 MICRO-ORGANISMS IN AVATER 



BACILLUS INUNCTUS 



I LIQUEFIES GELATIN E | 



Authority. — Pohl, ' Ueber Kultur und Eigenschaften einiger Sumpfwasser- 

 bacillen,' Centralblatt f. B akterio log ie, vol. xi., 1892, p. 143. 



"Where Found. — In marsh-water. 



Microscopic Appearance.— Bacilli about 3-5 ^long and 0-8 to 0-9^ broad. It 

 is motile. 



Cultures. — 



Gelatine Plates. — Oval or round, smooth -rimmed colonies, whitish in 

 colour, having a shining oily appearance. The gelatine is only slightly 

 liquefied. 



Gelatine Tubes. — Forms on the surface a thick shining white expansion, 

 and grows all along the path of the needle in the depth, radiating out at the 

 bottom. Liquefaction only commences after several days. 



Agak-agar. — Forms all along the needle's path on the surface acloudy white 

 growth, whilst the condensed water remains clear. 



Potatoes. — Produces a slimy white expansion, which very soon covers the 

 whole surface. 



BACILLUS STOLONIPEKUS 



I LIQUEFIES GELATINE | 



Authority. — Pohl, ' Kultur der Sumpfwasser-bacillen und Andwendung 

 alkalischer Nahrgelatine,' Centralblatt f. Bakteriologie, vol. xi., 1892, p. 

 142. 



Where Found. —In marsh-water. 



Microscopic Appearance.— Bacillus 1*2 fj. long and 0-8 /t broad. Very motile. 



Cultures. — 



Gelatine Plates.— Circular colonies with serrated edge, lighter in colour in 

 the centre than at the periphery. 



Gelatine Tubes. — Liquefies the gelatine in the shape of a funnel. Lique- 

 faction commences in twenty-four hours. 



Agar-agae. — Forms a thick white growth along the needle streak, expanding 

 radially at the bottom. The condensed water becomes turbid. 



Potatoes.— Forms small pin-head growths which lie close together, and, 

 starting from the point of inoculation, very soon spread over the whole surface 

 of the potatoes. 



Milk. — The milk is not coagulated, and no acid is produced. 



