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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Matheson, Robert
    Type: Article
    In: Bulletin of the Brooklyn Entomological Society
    Volume: 25
    Series: new
    Date: 1930
    Page Range: 291--294
    Publication Info: Brooklyn, N.Y, The Society,
  2. By: Matheson, Robert
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 20
    Date: 1912
    Page Range: 156--193
    Publication Info: Lawrence, Kan Allen Press [etc.]