202 BACTERIOLOGY 



3. Indol production not stated. 



8. B. brassica Lehmann-Conrad. 



B. Milk not coagulated. Hog Cholera Group. 



1. Tndol produced. 



9. B. icterogenes Kruse. 



10. B. Poelsii. 



11. B. columbarum. 



2. No 2«rfo/ produced. 



a. More or less gas produced in lactose bouillon. 



12. B. Breslaviensis Kruse. 



b. No gas in lactose bouillon. 



13. B. Salmoni (Trevisan). 



14. B. levans Lehmann-Wolffin. 



c. Gas production in lactose bouillon indeterminate. 



15. B. loxiacida. 



3. Indol production indeterminate. 



16. B. morbificans Basenau. 



17. B. Silberschmidii. 



18. B. murium Loffler. 



II. No gas generated in glucose bouillon. Typhoid Group. 



A. Milk coagula^ted. 



19. B. intestinalis Dyar-Keith. 



B. Milk not coagulated. 



I. Potato cultures whitish grayish or invisible. 



a. Bacteria from animal habitats, pathogenic; nearly identical in 



cultural characters with B. typhosus. 



* A pyogenic reaction at point of inoculation in guinea pigs. 



20. B. meningitidis Neuraann-SchaefFer. 



** No pyogenic reaction by inoculation into experimental animals. 



21. B. typhosus Zopf. 



22. B. pseudo-typhosus Kruse. 



23. B. Billingsi. 



24. B. paradoxus Kruse. 



25. ^. /«/z> (Lehmann-Neumann). 



b. Soil and water bacteria, not so distinctly connected with B. ty- 



phosus. 



* Rosolic acid solution decolorized. 



26. B. solitarius Ravenel. 



