NON-SPORING BACILLI 



295 



9 investigated, and these too are ascribed to pharyngeal 

 or buccal infection, that is, alimentary infection. With 

 the primary abdominal cases, this gives 38 cases of 

 tuberculosis of presumably alimentary infection, in which 

 the bovine bacillus alone was found in 17 instances, the 

 human in 19, and a mixed infection in 2. 

 Summary. 



Lupus. Out of 20 cases investigated, the virus was 

 decided to be bovine in 9 cases, and to be the human 

 type in 11. All but three of the cases presented difficulty 

 in the detection of the type of bacilli. One was 

 undoubtedly bovine by the already decided-on tests, two 

 were likewise human ; but the remaining 17 furnished 

 bacilli which conformed to the one type in some particulars 

 and to the other in other particulars. Thus the other 

 8 finally called bovine showed the cultural characters of 

 that type, but a lowered virulence for the calf and also 

 for the rabbit, monkey, and guinea-pig. Two had their 

 virulence raised by passage through the calf and rabbit, 

 bringing it up to that of the bovine type. Those ascribed 

 to the human type (11), but not typically so, had lowered 

 virulence for all the test animals or some of them. The 

 general result therefore seems to point to the existence of 

 bacilli outside the types chosen ; these may be new types, 

 or members of the other types with degraded virulence. 



Tuberculosis in Swine. In 59 cases investigated of 



