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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Tower, William Lawrence,
    Publication info: Washington, D.C, Carnegie Institution of Washington, 1906
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Colorado potato beetle  Leptinotarsa  Variation (Biology)  
  2. By: Tower, William Lawrence, - Breitenbecher, J. K. (Joseph Kumler),
    Publication info: Washington, Carnegie Institution of Washington, 1918
    Holding Institution: Multiple institutions
    Subjects: Leptinotarsa