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Meetings and Conferences, 1926-1980. Techniculture Conference Committee. (Box 158, Folder 22)
Barberry Eradication. Progress reports by states. Barberry Eradication Campaign, Minnesota. (Box 1, Folder 2)
Barberry Eradication. Progress reports by states. Barberry Eradication Campaign, Nebraska. (Box 3, Folder 17)
Commissions, Conferences, Councils and Symposia, 1952-2001. Forestry. (Box 28, Folder 4)
Commissions, Conferences, Councils and Symposia, 1952-2001. Forestry. (Box 28, Folder 9)
Commissions, Conferences, Councils and Symposia, 1952-2001. President's Council of Advisers on Science and Technology (PCAST). (Box 29, Folder 18)
Commissions, Conferences, Councils and Symposia, 1952-2001. World Food Prize. (Box 31, Folder 10)
Incoming Correspondence, A-C (Box 20, Folder 198)
Plant Pathology Department University of Minnesota and United States Department of Agriculture. Annual Report of the Progress of Barberry Eradication. (Box 10, Folder 34)
Plant Pathology Seminar. Plant pathology seminar abstracts. (Box 5, Folder 15)
Professional Activities.  1st International Congress on Plant Pathology, London. (Box 14, Folder 42)
Professional Activities.  Phi Beta Kappa Visiting Scholar. (Box 14, Folder 46)
Subject Files, 1950-2006. Clipping Files, undated, 1962-2000. Food and Drug Issues and Health. (Box 34, Folder 29)
Subject Files, 1950-2006. Clipping Files, undated, 1962-2000. Food, Population, Forestry, Environment. (Box 34, Folder 28)
Subject Files, 1950-2006. Clipping Files, undated, 1962-2000. Miscellaneous. (Box 35, Folder 6)
Subject Files, 1950-2006. Clipping Files, undated, 1962-2000. Miscellaneous. (Box 35, Folder 7)
Subject Files, 1950-2006. Clipping Files, undated, 1962-2000. Miscellaneous. (Box 36, Folder 7)
Subject Files, 1950-2006. People and Miscellaneous Topics. Insecticides. (Box 38, Folder 10)
Subject Files, 1950-2006. People and Miscellaneous Topics. Insecticides. (Box 38, Folder 6)
Subject Files, 1950-2006. People and Miscellaneous Topics. Insecticides: DDT. (Box 38, Folder 11)