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Filtering by: Creator Oregon Agricultural Experiment Station Remove constraint Creator: Oregon Agricultural Experiment Station Creator Washburn, F. L. (Frederic Leonard), 1860 1927 Remove constraint Creator: Washburn, F. L. (Frederic Leonard), 1860 1927 Decade 1890-1899 Remove constraint Decade: 1890-1899 Date 1890 Remove constraint Date: 1890

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