THE CLASSIFICATION OF BACTERIA 203 



** Rosolic acid solution not decolorized. 

 ( 27. B. geminus Ravenel. 



28. B. aquatilis-sulcatus-quartus Weichselbaum. 



29. B. primus- Fullest Dyar. 

 Action on rosolic acid not stated. 



30. B. tracheiphilus Smith. 



2. Potato cultures becoming yellowish-brownish. 



a. Grow well at the body temperature. 



* Produce indol. 



31. B. pinatus Ravenel. 

 ** Do not produce indol. 



f Gelatin stab arborescent, i.e. with outgrowths. 



32. B. Raveneli. 



ft Gelatin stab not distinctly arborescent. 

 Milk rendered alkaline. 



33. B. alcaligenes Petruschky. 

 Milk reaction not stated. 



34. B. Friedebergensis Gaffky-Paak. 

 *** Indol production not stated. 



35. B. solanacearum Smith. 



b. Do not grow at the body temperature. 



36. B. Weichselbaumii. 



III. Gas development in glucose bouillon not stated. Bacteria of the Colon, 

 Hog Cholera, and Typhoid Groups ; not classified. 



A. Milk not coagulated. 



1. Pathogenic to guinea pigs and rabbits. 



37. B. Friedebergensis Kruse. 



2. Pathogenic to pheasants, not so to guinea pigs and rabbits. 



38. B. phasini. 



3. Non-pathogenic. 



39. B. Schafferi v. Freudenreich. 



40. B. rugosus. 



B. Milk coagulation not stated. 



1 . Gelatin colonies of the colon type. 



a. Pathogenic for birds (motile bacilli related to the bacillus of 

 fowl cholera). 



* Not pathogenic to guinea pigs. 



41. B. avisepticus. 



42. B. avium Kruse. 



