220 BACTERIOLOGY 



40. B. rugosus 



B. No. 27 Conn : I.e., 1893, 54. 



Morphology. Bacilli 0.8 : 1.3-2 ^. 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 



B. der Kanarienvogelseptikamie Rieck : Deutsche Zeitsch. f. Thier. Med., 1889. 



Morphology. Bacilli 1.2-2.5 /x long; show a polar staining. 

 Potato. 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 diphtheric 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 Comp. 

 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. 



