QQ The Farmer's Veterinary Ad/viser. 



Acting on this suggestion, I, in 1880, inoculated two pigs 

 witli swine-ijlague liquids, after I had sterilized them by 

 heat, and had the satisfaction of seeing developed but a 

 slight and temporary fever only. Later I repeated the 

 inoculation v?ith sterilized liquids, and finally exposed the 

 same animals to contact with pigs sick with swine-plague, 

 and to repeated inoculations with virulent liquids which 

 proved fatal to unprotected pigs, yet they successfully re- 

 sisted all such exposures. 



Since that date I have availed myself of the same method 

 for lung-plague in cattle, having first carried it out on ten 

 experimental cases in 1881, which subsequently successfully 

 resisted all my inoculations with fresh virus that proved 

 fatal to unprotected animals used as test cases, and were 

 finally sent, to the number of six, into infected premises in 

 Erooklyn, N. Y., and Baltimore County, Md., bnt came 

 through all without showing a sign of illness. Since that 

 time I have successfully inoculated with sterilized lung-plague 

 virus a considerable number of cattle that had been exposed 

 to the contagion, or were to be, with, in the main, thoroughly 

 satisfactory results. In two cases only were the results 

 unsatisfactory, in the first, where the inoculating matter had 

 been taken from a lung which did not show a sufficiently 

 active development of the lung-plague lesions, and in the 

 second, where no thermometer could be had marking over 

 120° F., so that the sterilization remained incomplete and 

 living germs were inoculated. 



Similarly Toussaint inoculated against anthrax in 1880 : 

 I tested it on two herds, in July, 1884, and in 1885. 

 In the first herd one heifer was left without inoculation as 

 a test case, and in two days she died of anthrax, while the 

 remainder of the herd, twelve in number, successfully 

 resisted. The second, a large herd, escaped without a loss. 



In these cases the virulent liquids were heated to 160° F., 

 and even higher, for an hour, and when time permitted this 



