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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Waterhouse, G. R. (George Robert), - Janson, E W
    Type: Article
    In: Transactions of the Entomological Society of London
    Volume: 8
    Series: new
    Date: 1855
    Page Range: 136--156
    Publication Info: London, The Society,
  2. By: Janson, E W
    Type: Article
    In: Transactions of the Entomological Society of London
    Volume: 8
    Series: new
    Date: 1855
    Page Range: 222--224
    Publication Info: London, The Society,