"BRAXY" sheep disease in AUSTRALIA. 567 



10.— THE " BRAXY " TYPE OF SHEEP DISEASE IN AUSTRALIA. 



By PROFESSOR GILRUTH, DJ\ Sc, M.R.C.V.S., F.R.S.E., Melbourne University. 



[Plates XVIII-XVIV.] 



CONTENTS. 

 Introductory. 



The Disease in Tasmania : 



History. 



Season. 



Age and Condition Incidence. 



District. 



Mortality. 



Symptoms. 



Post-mortem Appearances. 

 The Disease in Victoria : 



History. 



Season. 



Age and Condition Incidence. 



Symptoms. 



Post-mortem Appearances. 

 The Pathogenic Organism : 



Characters. 



Cultures in Liquid and Solid Media. 



Sporulation. 



Odour of Gas produced by the Bacilli. 



Virulence of Cultures. 



Pathogenicity. 



Agglutination. 



Toxin. 



Differences between Tasmanian and Victorian Bacillus. 

 Results of Inoculations : 



Tasmanian Bacillus. 



Victorian Bacillus. 

 The Situation of the Pathogenic Bacilli in the Naturally and Experimentally 



affected Animal. 

 Diminution of Virulence in Cultures, and Immunization by such Cultures. 

 Immunisation by Feeding with Virulent Cultures. 

 European Braxies. 

 Bacteriology of European Braxies. 

 Other Braxy-like Diseases : 



Diseases A and B. 



Malignant Oedema. 

 Bacteriology of European Braxies : 



Bradsot. 



Braxy. 

 T)isease of Braxy-type in New Zealand. 



Diseases Allied but Distinct : Malignant Oedema and Blackleg, 

 Predisposing Causes of Braxies in General, and the Natural Method of 



Infection. 

 Prophylaxis. 

 Nomenclature. 

 Summary and Conclusions. 



Appendix A. 



Tasmanian Bacillus : Details of Experiments : 



I. Further Experiments on Guinea-pigs and Rabbits with Sub- 

 cultures in Serum Broth under Oil. 

 II. Experiment on Calf. 



III. Experiments with Diseases Muscle Dried at 55° C. 



IV. Weakening of Virulence in Cultures in Serum Broth (without 



Glucose) under Oil. 



