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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Hadley, C. H. - United States. Bureau of Entomology and Plant Quarantine.
    Publication info: [Washington, D.C.?], Bureau of Entomology and Plant Quarantine, Agricultural Research Administration, U.S. Dept. of Agriculture, 1948
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  1. By: Hadley, C. H.
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 46
    Date: 1938
    Page Range: 203--216
    Publication Info: Lawrence, Kan Allen Press [etc.]