432 MICRO-ORGANISMS IN WATER 



BACILLUS FUSCUS LIMBATUS 



Authority. — Scheibenzuber, Allgemeine Wiener med. Zeitung^ 1889, No. 16, 

 p. 171. 



"Where Found.— In bad eggs. Tataroff (loc. cit.) describes a bacillus ob- 

 tained by him from water (Har^farbener bacillus) which he regards as identical 

 with the above. 



Microscopic Appearance. — Short bacilli, rarely occurring in threads. Very 

 motile. 



Cultures. — 



Gelatine Plates. — Forms small brownish lumps with rounded edge ; some 

 are surrounded by a lighter zone two to three times as broad as the original 

 colony. No liquefaction takes place. 



GrBLATiNE TuBES. — Docs uot expand much on the surface, but in the depth 

 the needle's path is marked by short budding branches ; tlae gelatine in the 

 vicinity becomes brown, assuming the shape of a sack, the greatest width of 

 which is directed upwards. 



Agae-agar. — Forms a superficial expansion, the agar becoming more or less 

 brown in colour. 



BACILLUS BRUNNBUS 



Authority.— Adametz and Wichmann, Die Bakterien der Nutzr und Trink- 

 wHsser, Vienna, 1888. Eisenberg, Bakteriologisclie Diagnostik^ 1891, p. 142. 



Where Found. — Water. 



Microscopic Appearance. — Fine slender bacillus. Not motile. Forms 

 spores. 



Cultures.— 



Gelatine Plates. — Forms thick dirty white drop-like centres ; later, after 

 from ten to fourteen days, they become grey, and a brown pigment is produced 

 in the under-part of the colony. No hquefaction takes place. 



GsLATmE Tubes. — It grows principally along the needle track in the depth ; 

 later a milk-white and slimy growth appears at the point of inoculation nearly 

 1 mm. thick. This mass becomes gradually grey, and the characteristic brown 

 pigment separates out in the lower layers, whilst all along the needle track 

 the colonies have a distinct brown colour. 



Agar-agae. — Grows as in gelatine. 



BACILLUS SAPROaENES H 



Authority. — Bosenbach, Mikroorganismen hei Wundinfektionskrankheiten, 

 Wiesbaden, 1884. 



"Where Found. — In perspiration from feet. Found by Tils on one occasion 

 in large numbers in the Freiburg water [he. cit). 



Microscopic Appearance.— Small slender bacillus. 



Cultures.— 



Gelatine Plates. — The depth colonies are yellow, and appear to be arranged 

 near one another like balls. On the surface tough, slimy, smooth-rimmed and 

 radially streaked colonies appear. The growth is so tough and compressed that 

 the whole colony can be removed all at once with the needle (Tils, loc. cit). 



Agar-agar. — Forms in about twenty-four hours an expansion appearing to 

 consist of numbers of individual tiny drops, later producing a clear tough slimy 

 expansion. In the presence of air a most offensive odour is perceptible, but it 

 is less intense in the absence of air. 



BemarkB. — When inoculated into the knee and pleural cavities of rabbits, these 

 animals die, exhibiting purulent infianunation. 



