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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Chupp, Charles,
    Publication info: Ithaca, [Cornell] University, 1917
    Holding Institution: University of California Libraries
    Subjects: Cruciferae  Diseases and pests  Plasmodiophora brassicae  
  2. By: Chupp, Charles,
    Publication info: Ithaca, 1917
    Holding Institution: Library of Congress
    Subjects: Clubroot  Plasmodiophora brassicae