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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Bidder, G. P. (George Parker),
    Type: Article
    In: Quarterly journal of microscopical science
    Volume: 67
    Series: 2
    Date: 1923-07-01
    Page Range: 293--324
    Publication Info: London J. and A. Churchill [etc.]
  2. By: Bidder, G. P. (George Parker),
    Type: Article
    In: Proceedings of the Royal Society of London
    Volume: 64
    Date: 1898
    Page Range: 61--76
    Publication Info: London, The Society, 1855-1905