432 MICRO-ORGANISMS IN WATER 



BACILLUS FUSCUS LIMBATUS 



Authority. Sclieibenzuber, Allgcmeine Wiener med. Zeitung, 1889, No. 16, 

 p. 171. 



Where Found. In bad eggs. Tataroff (Zoc. cit.) describes a bacillus ob- 

 tained by him from water (Harzfarbener 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. 



GELATINE TUBES. Does not expand much on the surface, but in the depth 

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

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

 which is directed upwards. 



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

 brown in colour. 



BACILLUS BEUNNEUS 



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

 wdsser, Vienna, 1888. Eisenberg, Bakteriologische 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 liquefaction takes place. 



GELATINE 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-AGAR. Grows as in gelatine. 



BAClhU'S SAPBOGENES II 



Authority. Rosenbach, Mikroorganismen bei Wundinfektionskrankheiten, 

 Wiesbaden, 1884. 



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

 in large numbers in the Freiburg water (Zoc. 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, Zoc. 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. 



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

 animals die, exhibiting purulent inflammation. 



