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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Lyford, Charles C.
    Publication info: Minneapolis, Moffett & Thurston, printers, [1891]
    Holding Institution: Library of Congress
    Subjects: Infertility in animals  
  2. By: Albrechtsen, Jacob, - Wehrbein, Heinrich,
    Publication info: Chicago, A. Eger, 1917
    Holding Institution: Multiple institutions
    Subjects: Cows  Infertility in animals