Dr. Francis on the Variolation of Cows
نویسنده
چکیده
Kasan, in Russia, in 183G, and, two or three years later, Dr. Ceely, of Aylesbury, have satisfactorily proved it. It would seem, says Dr. Aitken. of Netley, referring to these results in his "Science and Practice of Medicine," that the "constitution of the cow has the power of assimilating, of modifying, and of mitigating the human variolous virus, and of stamping it with the properties of the vaccine variola."
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