GENUS BACILLUS 325 



a chronic lesion in a case that gave a history of a prolonged 

 fever. He found that it was closely related to B. snipe stifer. 

 The disorders or diseases caused by the Gartner group 

 consist of two types, (1) those in which there are gastro- 

 enteric symptoms following the ingestion of the meat, and (2) 

 where the disease simulates a mild form" of a continuous fever 

 (paracolon). Buxton 14 and Durham 15 have made careful 

 studies of this group based on cultural characters and the 

 agglutination tests. Buxton gives the following scheme for 

 identifying bacilli belonging to the colon, intermediate and 

 typhoid groups. 



B. coli Intermediate Typhoid 



Coagulation of milk -f- 



Production of indol + 6 



Fermentation of lactose with 



gas + 



Fermentation of dextrose with 



gas + + 



Agglutination in typhoid im- 

 mune serum -|- 



Peckham 16 found indol to be quite commonly produced by 

 B. typhosus and Moore found it in two different cultures of 

 B. suipestifer. 



In the bacteriological analyses of tissues, water, sewage, 

 etc., that one is liable to make in the search for the specific 

 bacterial cause or causes of animal diseases, organisms be- 

 longing to any of these three groups may be encountered. In 

 order to simplify the identification the following table has 

 been constructed. 



"Buxton. Jour. Med. Research, Vol. VIII (1902) p. 201. 

 "Durham. Jour. Exp. Med., Vol. V (1901) p. 353. 

 16 Peckham. Jour. Exp. Medicine, Vol. II (1897) p. 549. 



