BACTERIOLOGY. 



Bacillus septicus, Klein.* Rods varying in 

 size, non-motile. They form threads or leptothrix 

 filaments, and are rounded at the ends. They are 

 an'serobic, and form spores independently of access 

 of air. In a nourishing" fluid they are overcome 

 by the presence of micrococci. Bacterium termo or 

 Bacillus sub filis. They occur in the soil, in putrid 

 blood, and many putrid albuminous fluids, and 

 occasionally in the blood-vessels of man and 

 animals after death. 



Bacillus saprogenes, Rosenbach. Three rod- 

 formed organisms have been described by Rosen- 



FIG. 122. BACILLUS SAPROGENES, No. i. [After Rosenbach.] 



bach as intimately associated with putrefactive 

 processes. 



No. i. Large rods (Fig, 122), which form an 

 irregular sinuous streak with a mucilaginous ap- 

 pearance, when cultivated on nutrient agar-agar. 

 Spore-formation present. They grow also very 

 readily on blood serum, and all cultivations yield 

 the odour of rotting kitchen refuse. They are not 

 pathogenic. 



No. 2. Rods shorter and thinner than No. i. 

 They develop very rapidly on agar-agar, forming 



* Klein, Micro-organisms and Disease. 1885. 



