196 IMPORTANT VARIETIES OF FISSION-FUNGI. 



3. Chains of slender rods. Bact. ulceris cancrosi (Kruse), L. and 

 N., page 207. 



(D) Grow well upon all ordinary nutrient media, especially 

 upon agar and gelatin. 



/. Colonies and nutrient media remain colorless. 



(A) Gelatin not liquefied, organisms without flagella, non-mo- 



tile. 

 -f-. No visible gas formed from grape-sugar. 1 



1. Not stained by Gram's method. When coming from the 



animal body they show polar staining. Form abundant 

 acid from grape- and milk-sugar. Milk often not coagu- 

 lated. Growth on potato usually poor, whitish-gray. 

 Bact. septicaemiae haemorrhagicae, Hiippe, page 208. 2 



2. Very similar to 1. Causes tuberculous-like changes in the 



animal. Bact. pseudotuberculosis rodentium, L. and 

 N., page 213. 



3. Very similar to 1 ; usually still more delicate. Tendency 



to formation of involution forms upon chlorid of sodium 

 agar. Bact. pestis (Yersin-Kitasato), L. and N., page 

 213. 



4. Stains by Gram's method. Grows poorly upon solid 



nutrient media ; marked formation of acid from sugar ; 

 milk is coagulated. Bact. Giintheri, L. and N., page 

 223. 



5. Stains by Gram's method. Abundant growth upon solid 



nutrient media. No formation of acid from milk-sugar. 

 Milk becomes slimy. Bact. lactis viscosum ( Adametz), 

 L. and N. , page 230. 



++ Evident gas-formation from grape-sugar ; closely related 

 varieties. 



1. Stains by Gram's method. Marked fermentation of milk- 



sugar. Milk coagulated. Bact. acidi lactici, Hiippe, 

 page 220. 



2. Does not stain by Gram's method. 



X- Phosphorescence when oxygen is admitted. Bact. 



phosphorescens, B. Fischer, page 231. 

 XX- ^ phosphorescence when oxygen is admitted (group 



of the Bact. pneumonias Friedlander). 

 (a) Fermentation of milk-sugar with liberation of gas. 

 Milk coagulated. Bact. aerogenes, Escherich, L. 

 and N., page 221. 



(/3) Fermentation of milk-sugar without liberation of 

 gas. Capsules formed in animal. Bact. pneu- 

 moniae, Fried!., page 225. 



(B) Gelatin not liquefied. Organisms motile, with many peri- 



trichous, rarely with one or a few polar flagella. 

 (a) No fermentation of sugar with formation of gas. Milk not 



1 See the remarks regarding our contradictory findings in connec- 

 tion with Loffier's swine plague. 



2 See also Bact. hsemorrhagicum (Kolb), L. and N, 



