304 APPLIED BACTERIOLOGY 



Swine Fever. 



Whether the organism of swine fever is identical or not 

 with the bacillus of mouse-septicsemia, it is at any rate 

 certain that it is a specific bacillus which can be cultured 

 for many generations on artificial media, and is then 

 capable of producing swine fever in a healthy animal. 

 As, however, it is not readily distinguished by its size or 

 shape, or its behaviour to stains, from other bacteria of 

 common occurrence, the microscopic examination of affected 

 tissues is not so useful for purposes of diagnosis as the 

 naked eye appearance. 



In the Keport of the Board of Agriculture (The Diseases 

 of Animals Act) for 1895 it is stated that many more 

 animals recover from this disease than was formerly sup- 

 posed, while in those that die an examination will reveal 

 lesions of the alimentary canal that are so characteristic as 

 to warrant a positive diagnosis. In the same report are a 

 series of admirable plates showing the appearance of the 

 characteristic lesions. 



Cattle Malaria. 



Celli and Santori (Gentralh. f Baht., 1897, Nos. 15 and 

 16) report their investigations on a disease which attacks 

 foreign cattle living in the Campagna, but spares those 

 indigenous to the district. It is characterised by fever, 

 great anaemia, an enlarged spleen, and bloody urine, and is 

 very frequently fatal. The authors found in the red blood 

 corpuscles of animals affected by and dead of the disease a 

 small body assuming two types, according to whether its 

 movements were amoeboid or from place to place in the 

 corpuscle. Culture experiments failed, but on one occasion . 

 they succeeded in inoculating a healthy calf with the 

 disease, and in demonstrating the foreign bodies in the 



