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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Smith, Geoffrey - Hamm, A H
    Type: Article
    In: Quarterly journal of microscopical science
    Volume: 60
    Series: 2
    Date: 1914-09-01
    Page Range: 435--459
    Publication Info: London J. and A. Churchill [etc.]
  2. By: Hamm, A H
    Type: Article
    In: Transactions of the Entomological Society of London
    Volume: 54
    Date: 1907
    Page Range: 483--486
    Publication Info: London, The Society,