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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Kob, Johann Andreas,
    Publication info: Wien, [publisher not identified], 1799
    Holding Institution: Library of the Netherlands Entomological Society, Naturalis Biodiversity Center
  2. By: Kob, Johann Andreas,
    Publication info: Nürnberg, Bischoff
    Holding Institution: Harvard University Botany Libraries