232 INFECTIVE DISEASES. 



will not grow on potato, while Bunzl-Federn maintains that the 

 bacilli from fowl cholera and rabbit septicaemia do grow upon potato, 

 but those from septicaemia in deer, buffaloes, and swine do not. 

 Opinions differ with regard to their action on milk. The reaction 

 for phenol and indol is given in all cases, except with cultures 

 obtained from septicaemia of buffaloes. The virulence of the bacilli 

 may be diminished and attenuated, but it may subsequently be 

 restored by successive inoculation in animals. The pathological 

 lesions vary in different animals. The most common result is con- 

 gestion of the internal organs and haemorrhage. The bacilli culti- 

 vated from cattle or deer produce fata,l results when inoculated 

 in swine. The bacilli from any of these sources inoculated in 

 pigeons will produce fowl cholera, but the bacilli isolated by Schiitz 

 from swine, and those from deer, are not fatal to fowls. Further, 

 the bacilli cultivated from swine fever are fatal to guinea-pigs, 

 while the bacilli from rabbit septicaemia have very little effect upon 

 them. The bacilli have been found in association with diseases of 

 cattle, swine, deer, birds, rabbits, and mice, and have been cultivated 

 from healthy mucous membrane. Yeranus Moore found the bacilli 

 in the mucus from the upper air passages, of 71 per cent, of cattle, 

 85 per cent, of cats, and 33 per cent, of dogs. From these sources 

 inoculations were made in rabbits, and rapidly fatal septicaemia 

 was produced, associated in less acute cases with peritonitis, pleurisy, 

 and pericarditis. 



