82 B. BRADLEY. 



III. A group consisting of organisms which showed a 

 "colon-like" instead of a typhoid like morphology. 

 Some of these gave acid but no gas on lactose not 

 affecting saccharose. Others gave no action on 

 lactose. The milk whey reaction differed from 

 that of Group I. Sometimes milk was clotted. 



Schottmuller (1901) describes two paratyphoid organisms 

 and differentiates an A. and B. type. The type A. para- 

 colon according to him rendered the milk slightly and 

 permanently acid, while the B. type produced eventual 

 alkalinity. 



Longcope (1902) y {20) describing two paratyphoid organisms 

 isolated by him from the blood of two cases like enteric 

 with negative Widals, found that one of these produced 

 eventual alkalinity on milk while the other showed merely 

 a gradual return to neutrality. Both organisms produced 

 acid and gas on glucose and mannit, and no reaction on 

 lactose and saccharose. Indol was negative. 



Hewlett (1902), (22) describing the paratyphoid organism 

 "Noonan," isolated from the blood of a case, notes 

 cameleonage, acid and gas on glucose and no action on 

 lactose and saccharose. 



Libman (1902) (19) gives the reactions of a paratyphoid 

 organism he himself recovered from the blood, bile, urine 

 and spleen of a rather anomalous typhoid-like case : acid 

 and gas were found on glucose and mannit, no action 

 occurring on lactose or cane sugar. Milk was transitorily 

 acidified and later alkali was produced. 



Johnston (1902)( 21) isolated from the blood of two case 

 paratyphoid organisms, these he tested with numerous 

 other strains, and agrees with the differentiation into A, 

 and B. types. 



