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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Gibson, Arthur, - Canada. Division of Entomology.
    Publication info: Ottawa, Govt. Print. Bureau, 1915
    Holding Institution: Canadiana.org
    Subjects: Army-worms  Insect pests  
  2. By: Gibson, Arthur, - Canada. Division of Entomology. - Dominion Experimental Farms and Stations (Canada)
    Publication info: Ottawa, Govt. Print. Bureau, 1912
    Holding Institution: Canadiana.org
    Subjects: Army-worms  Cutworms  Insect pests