802 BACILLI PATHOGENIC IN ANIMALS. 



and epidemic occurrence of rauschbrand we must assume 

 that the distribution of the infective agents is different 

 to that of the oedema bacilli, which occur everywhere in 

 our surroundings, Kitt has also observed that while 

 rauschbrand is always fatal after inoculation, a calf 

 inoculated with malignant oedema became very ill, but 

 recovered. It is probable that cultivations on solid 

 nutrient substrata may show marked differences between 

 the two organisms ; but as yet we know nothing trust- 

 worthy with regard to the mode of growth of the colonies 

 of the rauschbrand bacilli. 



ISTeelsen and Ehlers found that the rauschbrand organisms 

 formed in the animal body only bacilli and spores, but that, on 

 the other hand, on cultivation on blood serum cocci developed. 

 They stated also that on other nutrient substrata the culti- 

 vation of the bacilli taken from the affected animal did not 

 in the first place succeed, but that after they had become 

 accustomed to life outside the body by cultivation 011 blood 

 serum they then grew on nutrient jelly, &c. These state- 

 ments, which are opposed to the results obtained by all other 

 authors, and which are quite unlikely, are probably due to 

 errors in the methods employed. 



Bacilli of swine erysipelas. 

 (Eouget du pore, Mai rouge, Hog cholera, Pig typhoid.) 



Within the last few years various investigators have 

 .directed their attention to the erysipelas which occurs 

 epidemically among swine, and which leads to great loss 

 of life; and as the result of the investigations of Thuillier, 

 Pasteur, Loeffler, Schiitz, Lydtin, and Schottelius, the 

 exciting agent of this disease has been discovered in the 

 animals affected ; it has been cultivated on artificial 

 nutrient substrata, and the original disease has been 

 again produced by inoculation of the cultivations on 

 animals, and thus the chain of evidence necessary to 

 demonstrate the etiological significance of the infective 

 agents has been completed. 



Symptoms of The symptoms of swine erysipelas as a rule commence 

 very suddenly. The swine attacked become suddenly 

 dull, they creep about, and cease to eat ; the voice 



