IS6 BACTERIOLOGY 



** Potato growth scarcely visible. Grow well at 20° C. 

 t Gas generated in nutrient gelatin and glucose bouillon. 

 99. Bad. aromatuum (Pammel). 

 tt No gas in nutrient gelatin (?). 



100. Bad. nubiluni (Frankland) Lehmann-Neumann. 

 loi. Bad. methylicum (Loew.).. 

 *** On potato, raised dry grayish colonies. Bacilli show chro- 

 matic granules in the interior of the rods. 



102. Bad. Trambusti Kruse. 



b. Potato growth yellowish — brownish. 



* Gelatin stab cultures show a saccate liquefaction. 



103. Bad. aquatilis (Zimmerman). 



** Gelatin stab cultures a crateriform liquefaction, becoming 

 stratiform. 



104. Bad.flexuosiimQNx'x^'C). 



c. Potato growth pinkish — salmon-colored. 



105. Bad. ambiguum Chester. 



d. Color of potato growth not stated 



106. Bad. convolutum (Wright). 

 II. Colonies on gelatin plates amoeboid or proteus-like. 



Bact. radiatum Group. 



107. Bad. radiatum Chester. 



BACT. AMBIGUUM GROUP 

 92. Bact. salmonica (Kruse) . 



Bacillus der Forellenseuche Emmerich- Weibel : Archiv f. Hygiene, XXI, 1894, i. 

 B. salmonica Kruse : Flflgge, Die Mikroorganismen, 1896, 322. 



Morphology. Bacilli short rods. Do not grow at 37° C. 



Gelatin colonies. Whitish-gray, becoming brownish, glistening, cholera-like, 

 with rqsulate markings. 



Gelatin stab. In depth, beaded colonies, then air bubbles, with slow liquefac- 

 tion, and production of an open canal, mostly air. 



Bouillon. Clear, with a sediment. 



Agar slant. Growth thin, moist, glistening, greenish yellow — brownish. 



Potato. No growth. 



Pathogenic to trout by inoculation of cultures. 



Habitat. Isolated from a disease of trout. 



