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  1. 1
    Report on codling-moth investigations in the northwest during 1901 /

    Report on codling-moth investigations in the northwest during 1901 / by Simpson, C. B. (Charles Baird), 1877-1907

    Published 1902
    “…U.S. Dept. of Agriculture, Division of Entomology,…”
    Government Document Book
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  2. 2
    The codling moth /

    The codling moth / by Simpson, C. B. (Charles Baird), 1877-1907

    Published 1903
    “…U.S. Dept. of Agriculture, Division of Entomology,…”
    Government Document Book
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