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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Newell, Wilmon, - Barber, T. C. (Thomas Caldwell),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Bureau of Entomology, 1913
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Newell, Wilmon, - Barber, T. C. (Thomas Caldwell),
    Publication info: Washington, Govt. print. off, 1913
    Holding Institution: Library of Congress
  3. By: Barber, T. C. (Thomas Caldwell), - United States. Bureau of Entomology. - United States. Department of Agriculture.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Bureau of Entomology, 1911
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library