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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Porter, John, - Webber, Byron.
    Edition: 2nd ed.
    Publication info: London, Chatto & Windus, Piccadilly, 1896
    Holding Institution: Webster Family Library of Veterinary Medicine
  2. By: Porter, John, - Moorhouse, Edward
    Publication info: London, G. Richards, 1919
    Holding Institution: University of Toronto - Gerstein Science Information Centre