I 4 BACTERIOLOGY 



Litmus milk. Pure blue, becoming decolorized in 10 days. Indol negative. 



Grow at 37 . 



Habitat. Water. 



43. Bact. zurnianum (List) 



Adametz, Bakt. Nutz u. Trinkwasscr, Vienna, 1888; Dyar, I.e., 362. 



Morphology. Bacilli 0.5:0.6-1.0; occur singly and in short chains. Cul- 

 tures on solid media translucent, white, very viscous. Indol negative. 

 A slight reduction of nitrates to nitrites. 



Habitat. Isolated from the air. 



44. Bact. Martizeni (Sternberg) 



B. Martizeni Sternberg : Manual of Bacteriology, 1892, 651. 



Morphology. Bacilli 0.5 : 1 .0-1 .5 /x ; occur singly and in short chains. Nitrates 



slightly reduced after 28 days (Dyar, I.e.). 

 Agar slant. Growth white, translucent. 

 Pepton-rosolic acid. Deepened in color (Dyar). 

 Habitat. Isolated from the liver of a yellow fever cadaver (Sternberg). From 



the air (Dyar (?)). 



45. Bact. cuniculicida (Kruse) 



B. cuniculicida-thermophilus Kruse : Fltigge, Die Mikroorganismen, 1896. 

 Micrococcus sur une nouvelle septicemic du lapin Lucet : Annales Pasteur Institut, 

 1889, 401. 



Pathogenesis. Rabbits and guinea pigs inoculated subcutaneously and by 

 feeding die in 1-3 days ; septicaemia, spleen and liver enlarged, serous 

 membranes inflamed, bacilli in organs. 



Habitat. Associated with an epidemic of rabbits and guinea pigs. 



46. Bact. cuniculicida var. immobile 

 Pathogenesis. Only slightly virulent to mice, guinea pigs, and pigeons ; death 

 only with large doses. Rabbits at autopsy show an inflammation of se- 

 rous membranes. 

 Habitat. Associated with a spontaneous rabbit plague. 



47. Bact. putidum 



Bact. gracilis-cadaveris Sternberg: Manual of Bacteriology, 1892, 733. 



Morphology. Bacilli 1.0-2.0 /*; in chains. 



Gelatin stab. Beaded below, branched outgrowths above ; on the surface, 



growth thick, white. 

 Potato. Growth creamy. 



