220 BACTERIOLOGY 



40. B. rugosus 



B. fto. 27 Conn : I.e., 1893, 54. 



Morphology. Bacilli 0.8 : 1.3-2 /1. Grow at 35 . 

 Gelatin colonies. Transparent, elevated, spreading, wrinkled on edges. 

 Gelatin stab. In depth, growth beaded ; on the surface, growth thin, trans- 

 parent. 

 Agar slant. Growth white, elevated. 

 Potato. Growth thick, yellowish, spreading. 

 Milk. Alkaline, bad odor ; peptonized to a brownish fluid. 

 Bouillon. Turbid, with a pellicle and sediment. 

 Habitat. Milk. 



41. B. avisepticus 



li. der Kanarienv5gelseptikimie Rieck : Deutsche Zeitsch. f. Thier. Med., 1889. 



Morphology. Bacilli 1.2-2.5 f- l n gi show a polar staining. 

 /'iftato. Growth grayish yellow, otherwise in cultures like B. cholera-gallinarum. 

 Pathogenesis. Subcutaneous inoculations of mice cause septicaemia ; of canary 

 birds, sooty discoloration of the skin, liver necrosis, and septicaemia. 



42. B. avium Kruse 



B. de la diphthirie aviaire Loir-Duclaux : Ann. Pasteur Inst., 1894, 599. 

 B. diphtheria avium Kruse: Fliigge, Die Mikroorganismen, 1896, 410. 



Morphology . Bacilli like those of fowl cholera. Cultural characters not fully 



described. 

 Pathogenesis. Pathogenic for all kinds of birds. Subcutaneous inoculations 



of rabbits cause septicaemia, with death in 6-10 days; an exudate in 



pharynx. 

 Habitat. The cause of an epizootic among chickens, pigeons, turkeys, and 



canary birds in Tunis. 



43. B. meleagris 



B. of epizootic pneumo-pericarditis in the turkey MacFadyean : Jour, of Com p. 

 Path, and Therap., VI, 1893, 334. 



Morphology. Bacilli like those of fowl cholera. 



Pathogenesis. Pathogenic to turkeys: nasal catarrh, "rattles" in the throat, 



pneumonia, and pericarditis ; bacilli in the lungs and organs. Only 



slightly pathogenic to rabbits and guinea pigs. 



