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  1. The "bluing" and the "red rot" of the western yellow pine, wth special reference to the Black hills forest reserve / by Hermann con Schrenk.
    By: Von Schrenck, - Schrenk, Hermann von,
    Publication info: Washington DC :Government Printing Office,1903.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Bluing of pine  Diseases and pests  Ponderosa pine  Red rot  Yellow pines  
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