POISON OF THE HORNED VIPER.
(Cerastes Coluber.)
Mr. Madden, whilst in Thebes, killed one of these animals, for the purpose of extracting its poison, which he found in a small membrane in the front of the jaw under the two hollow teeth. Having collected the venom carefully on a piece of glass, he examined it with a microscope, and found it to consist of sharp, saline spiculae, of a reticular appearance, extremely minute. "Half of this I gave to a dog, in a piece of meat—it produced no sensible effect; I then diluted the remainder, smeared the point of a lancet with it, and wounded the dog in the shoulder: this application he only survived three hours."'—Madden's Travels.