Narrative of Mr. John Badcock's original experiments illustrative of the relations of small-pox, cow-pox and vaccination, carried-on during twenty years (1840-1860) on 200 cows and large numbers of human beings, whereby many renewed supplies of vaccine lymph were obtained and propagated extensively in the world / by G. F. Hodgson.
Hodgson, G.F. | Date: 1881