CHAPTER XVI. 



BACILLI OF CHAUBERt's DISEASE (bAUSCHBEANd), OP 

 MALIGNANT (EDEMA AND OF TETANUS. 



In isolated districts in many countries, a disease 

 occurs amongst cattle, which for a long time was 

 confused with anthrax. When however it was proved 

 by means of the examination of sections that the two 

 diseases were distinct, search was made for the excit- 

 ing cause of the former ; this was finally discovered 

 to be a strongly anaerobic bacillus. The disease has 

 acquired its name of " Rmischbrand," from the fact 

 that peculiar swellings caused by collections of gas 

 occur in various parts of the body, especially on the 

 breast and thighs, and that these swellings crepitate 

 when they are stroked by the hand. 



If we examine a drop of the exudation from such a 

 place with the microscope, we find bacilli which on an 

 average are from '004 to "006 millimetres long and 

 about one-eighth as thick, and which occur either 

 singly or connected together in pairs. The ordinary 

 methods of cultivation do not answer with this bacte- 

 rium, as it is strongly anaerobic. It is therefore 



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