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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Pettit, J
    Type: Article
    In: The Canadian entomologist
    Volume: 3
    Date: 1871
    Page Range: 105--107
    Publication Info: Ottawa [etc.], Entomological Society of Canada [etc.],
  2. By: Pettit, J
    Type: Article
    In: The Canadian entomologist
    Volume: 6
    Date: 1874
    Page Range: 45
    Publication Info: Ottawa [etc.], Entomological Society of Canada [etc.],