144 BACTERIOLOGY 



Pathogenesis. Inoculations of mice cause death in a few days, of hemorrhagic 



septicaemia. Only slightly pathogenic to dogs and guinea pigs. 

 Habitat. Isolated from a case of septicaemia in man. 



57. Bact. Bienstockii (Schroter) 



Bacillus aus fcBces, No. Iff, Bienstock : Zeitsch. klin. Med., VIII, Heft i. 



B. Bienstockii Schroter : Pilze Schlesien, 1886, 163. 



B. coprogenes-parvus Fliigge : Die Mikroorganismen, 1886. 



Morphological and cultural characters like those of fowl cholera. 

 Pathogenesis. Subcutaneous inoculations of mice cause death in 56 hours ; 



cedema, with few bacilli in the blood. Inoculations of rabbits into ear 



cause death in 8 days, with erysipelas and diarrhoea. 

 Habitat. Isolated from faeces. 



58. Bact. haemorrhagicum (Kruse) 



Bacillus der idiopathischen Blutfleckenkrankheit Kolb: Arbeiten Kaiserlichen Gesund- 



heitsamte, VII, 1891, 60. 

 B. hamorrhagicus Kruse : Fliigge, Die Mikroorganismen, 1896, 424. 



Morphology. Bacilli 0.8 : 1-2 /*; capsule present or absent. 



Gelatin colonies. Flat, erose. 



Potato. Growth thin, moist. 



Pathogenesis. Inoculations of mice cause death in 2-3 days, of septicaemia. 

 Guinea pigs affected only by large doses. Rabbits often die by intra- 

 peritoneal injections of 0.5-1.0 cc. 



Habitat. Isolated from corpses of persons dead of septicaemia. 



59. Bact. velenosum (Kruse) 



Bacillus der hSmorrhagischen InfekHon Tizzoni-Giovannini : Ziegler's Beitrage, VII, i889„ 



300. 

 B. hamorrhagicus-velenosus Kruse : Fliigge, Die Mikroorganismen, 1896, 425. 



Morphology. ■•. Bacilli 0.2-0.4: 0.7-1.3 /i. 



Gelatin colonies. Flat, irregulaff, with floccose borders. 



Potato. Growth invisible. 



Pathogenesis. Inoculations of dogs, rabbits, and guinea pigs cause only loca- 

 cedema, with fever, hemorrhagic nephritis, vomiting, bloody diarrhoea ^ 

 spleen normal; necrosis of liver, and epithelium of kidney. 



Habitat. Isolated from a case of purpura-haemorrhagica. 



