Cereal Rust Laboratory Records, 1823, 1846-2007

Summary Information

Title: Cereal Rust Laboratory records
Dates: 1823, 1846-2007  (bulk 1900-1979)
Creator: Cereal Rust Laboratory
Extent: 47 boxes (47.5 cubic feet)
Language: Collection materials in English
Collection Number: uarc 37
Abstract:

The Cereal Rust Laboratory Records are composed of materials generated through research and field work performed in four areas : Barberry eradication, rust epidemiology investigations, rust race studies, and rust nursery work. Materials include correspondence, memos, ledgers, reports, studies, publications; brochures and program publicity, instructional materials, news clippings, scrapbooks, photographs and slides.

Repository: University of Minnesota Libraries. University of Minnesota Archives

Access and Use

Acquisition Information:

The bulk of this collection was transferred to University Archives in July 1989 by John F. Schafer.

Access Restrictions:

Items in this collection do not circulate and may be used in-house only.

Copyright:

Researchers may quote from the collection under the fair use provision of the copyright law (Title 17, U.S. Code). Requests to publish should be arranged with the University of Minnesota Archives.

Processing Information:

This collection was processed with funds provided by the State of Minnesota through the Minnesota Historical Society from the Arts and Cultural Heritage Fund, and with funds from the College of Food, Agriculture, and Natural Resource Sciences (CFANS) and individual donors. Digitization funds provided by the State of Minnesota from the Arts and Cultural Heritage Fund through the Minnesota Historical Society.

Preferred Citation:

Cereal Rust Laboratory records, University Archives, University of Minnesota, Twin Cities.

Historical Note

Activities that led to establishing the Cereal Rust Laboratory began in 1913 with a study of stem rust on wild grasses by University professors Elvin C. Stakman and F. J. Piemeisel. In 1915, the project became a cooperative investigation between the University’s Agricultural Experiment Station and the bureau of Plant Industry, U.S. Department of Agriculture (USDA). At that time, Professor Stakman was appointed a federal collaborator and Mr. Piemeisel a federal scientific assistant in the Office of Cereal Investigations of the Bureau of Plant Industry.

The results of this early cooperation between University and federal personnel laid the foundation for a rational approach to controlling the spread of rust through the breeding of plant varieties resistant to stem rust, which caused the destructive epidemics on wheat and other crops in the United States.

A group of researchers, often called the Federal Rust Laboratory, was led by Professor E.C. Stakman, who continued with a dual appointment as chief agent in the USDA Office of Cereal Investigations and University professor of plant pathology until his retirement in 1953.

Professor Stakman’s successor as head of the Department of Plant Pathology and Agricultural Botany, Professor J.J. Christensen, continued this leadership under an appointment as collaborator in the USDA.

An amendment to the Memorandum of Understanding between the University’s Agricultural Experiment Station and the USDA’s Agricultural Research Service established the Cooperative Rust Laboratory for the investigation of stem rust of cereals in 1962.

The laboratory was housed in the University’s Plant Pathology Department, and in 1965, congressional appropriates were made to plan and construct a laboratory facility to provide quarters and facilities for the cooperative rust investigations. The Cereal Rust Laboratory facility on the University campus was completed in 1972, and the Laboratory’s mission was to investigate the stem rusts of cereals and develop information and principles useful in the control of these diseases.

In 1997, the mission of the group was expanded to include research on Fusarium head blight (scab) of wheat and barley as well as cereal rust diseases, and the name was changed from Cereal Rust Laboratory to Cereal Disease Laboratory. Federal scientists at the Cereal Disease Laboratory retained their close association with the University’s Department of Plant Pathology and served as adjunct professors on its faculty.

Collection Scope and Content Note

The Cereal Rust Laboratory Records are composed of materials generated through research and field work performed in four areas : Barberry eradication, a decades-long national program aimed at eliminating the Common Barberry plant; stem rust epidemiology, investigations of how rusts spread; race studies, containing data collected about different strains of rust and their mutations; and rust nurseries, controlled environments where plants are exposed to rusts strains to determine how and why plants are vulnerable to rusts. The collection includes correspondence, ledgers, reports, studies, publications, news clippings, scrapbooks, maps, photographs and slides. Collection date range is 1846 to 2007, with the bulk of the material dating from 1919-1960.

Included in the collection are materials generated by the Minnesota-based Rust Prevention Association (later renamed the Conference for the Prevention of Grain Rust (1921) and still later the Crop Quality Council), which worked in tandem with the Bureau of Plant Industry's Office of Cereal Investigations to conduct field observations and heighten public awareness of the need to control rust spread by eliminating the Common Barberry. Photographs contained in annual state Barberry Eradication Campaign reports, as well as the Photograph series offer an in-depth look at eradication efforts carried out by student and civilian workers, an insight into transitions in farming equipment, fencing, farm buildings, transportation and landscape planting in the early 20th century.

A substantial part of the collection consists of reports generated by field agents involved in two projects: the Barberry Eradication Campaign and rust epidemiology surveys. Initially administered independently, the epidemiology surveys became part of the eradication campaign in 1924. The campaign sent workers-- funded at first by state and private funding, and later by WPA funds-- into towns, farms and fields to dig up, pull out or poison barberry plants. The epidemiology workers were a smaller, academically trained crew that worked for the USDA and the Rust Prevention Association observing and recording outbreaks and sending observations back to the Cereal Rust Laboratory. Daily, weekly and seasonal observations were sent to the Cereal Rust Lab form the original studies in 1917-1920 until the late 1950s.

The collection is organized into five series:

Series 1, Barberry Eradication Campaigns, includes material generated by state and national Barberry eradication efforts. It is divided in to six sub-series:

• Subseries 1. Annual Progress Reports by States includes a run of progress reports produced by state eradication program coordinators detailing eradication activities for each year. Most states provide reports beginning in the late 1910s and continuing through the late 1950s.
• Subseries 2. State Extension and State Department of Agriculture Activities Supporting Barberry Eradication Campaigns, which include includes printed materials produced by state eradication programs about the Common Barberry, including teaching materials, publicity, posters and public awareness campaigns.
• Subseries 3. Eradication Program-Related Publications, contain a variety of publication types, including journal and magazine articles, news articles and government publications.
• Subseries 4. Minnesota Barberry Eradication Activities, containing materials on Minnesota’s Barberry eradication efforts, including laws, affidavits of sightings, news clippings and reports. Minnesota barberry materials are not limited to this subseries: users will want to check other subseries, notably Subseries 2 (state extension services and state agriculture departments) for additional Minnesota content.
• Subseries 5. International Barberry Activities, contains articles and studies focusing on barberry removal and rust studies in countries outside the United States.
• Subseries 6. Miscellaneous Reports on Eradication Activities, including reports written by E.C. Stakman and other rust experts on barberry elimination efforts, 1918 through the 1940s.

Series 2. Stem Rust Epidemiology, contains materials relating to the study of the spread of stem rust. It is divided into 4 subseries:

• Subseries 1. Report and Studies, 1915-1982, consists of standardized weekly reports and related correspondence from field agents involved in tracking rust spread in specific locations; quarterly and annual reports from USDA summarizing field agent observations; and selected regional reports. A variety of terms are used to represent these activities, including reports, epidemiology reports, annual reports, rust epidemiology reports, reports on rust epidemiology, epidemiology progress reports and summaries. Reports are primarily from the 1920s-1960s.
• Subseries 2. Rust over-wintering data, field notes, and related correspondence.
• Subseries 3. Spore Studies, includes materials concerning spore counts and areobiological studies.
• Subseries 4. Miscellaneous Publications concerning Stem Rust studies.

Series 3. Rust Mutation Studies and Rust Nursery Observations, consists of materials concerning the physiological specialization and change in rust strains (races), including notes from field and laboratory observations, summaries, reports of controlled experimentation with rust growth on crops, and selected reprints and reports of experiments at rust nurseries in the United States, Europe and Russia.

Series 4. Crop Losses Due to Stem Rust. This section also contains information about the rust prevention labor force in the 1970s and reports recording crop loss due to stem rust by location.

Series 5. Photographs and Slides. Primarily photos of field work in the Barberry eradication program and rust infestations in rural and city and town settings. Also includes photos of infected plants, photos taken under the microscope of rust spores and glass and film slides. Additional photographs can be found interspersed throughout the collection, most notably in Series 1, subseries 1, Barberry Eradication Campaigns, and Subseries 4, Minnesota Barberry Campaigns.

Related Material

The Cereal Rust Laboratory records are one of several collections held by the University of Minnesota that document the development of agricultural practices that were central to the Green Revolution, including

Norman Borlaug papers

E.C. Stakman papers

John S. Niederhauser papers

John Gibler papers

Helen Hart papers

Department of Plant Pathology and Physiology records

Subject Terms

Index Terms

• This collection is indexed under the following headings in the catalog of the University of Minnesota Libraries. Researchers desiring materials about related topics, persons or places should search the catalog using these headings.
• Cereal Rust Laboratory -- Archives.
• Cereal Disease Laboratory.
• Barberries.
• Cereal rusts.
• Green Revolution.

Detailed Contents

Location		Title
		Barberry Eradication Campaigns
		Annual Progress Reports by States
		Colorado
Box 1		1923 Box 1, Folder 14 View folder contents.
		1924 Box 2, Folder 1 View folder contents.
		1925 Box 2, Folder 11 View folder contents.
		1926 Box 2, Folder 21 View folder contents.
Box 3		1927 Box 3, Folder 3 View folder contents.
		1928 Box 3, Folder 12 View folder contents.
		1929 Box 3, Folder 22 View folder contents.
Box 4		1930 Box 4, Folder 11 View folder contents.
Box 5		1931 Box 5, Folder 1 View folder contents.
		1932 Box 5, Folder 11 View folder contents.
Box 6		1935 Box 6, Folder 10 View folder contents.
		1936 Box 6, Folder 23 View folder contents.
Box 7		1937 Box 7, Folder 11 View folder contents.
Box 8		1938 Box 8, Folder 1 View folder contents.
		1939 Box 8, Folder 13 View folder contents.
Box 9		1940 Box 9, Folder 6 View folder contents.
		1943 Box 9, Folder 16 View folder contents.
Box 21		1938 Box 21
		Illinois
Box 1		1921 Box 1, Folder 3 View folder contents.
		1923 Box 1, Folder 15 View folder contents.
Box 2		1924 Box 2, Folder 2 View folder contents.
		1925 Box 2, Folder 13 View folder contents.
Box 6		1935 Box 6, Folder 12 View folder contents.
Box 10		1945 Box 10, Folder 16 View folder contents.
		1946 Box 10, Folder 31 View folder contents.
Box 11		1947 Box 11, Folder 9 View folder contents.
		1948 Box 11, Folder 22 View folder contents.
		1949 Box 11, Folder 35 View folder contents.
		1950 Box 11, Folder 49 View folder contents.
Box 21		1918, 1926 Box 21
		Indiana
Box 1		1922 Box 1, Folder 5 View folder contents.
		1923 Box 1, Folder 16 View folder contents.
Box 2		1924 Box 2, Folder 3 View folder contents.
		1925 Box 2, Folder 12 View folder contents.
		1926 Box 2, Folder 22 View folder contents.
Box 3		1927 Box 3, Folder 4 View folder contents.
		1928 Box 3, Folder 13 View folder contents.
Box 4		1929 Box 4, Folder 1 View folder contents.
		1930 Box 4, Folder 12 View folder contents.
Box 5		1931 Box 5, Folder 2 View folder contents.
		1932 Box 5, Folder 12 View folder contents.
		1933 Box 5, Folder 19 View folder contents.
Box 6		1934 Box 6, Folder 3 View folder contents.
		1935 Box 6, Folder 13 View folder contents.
		1936 Box 6, Folder 25 View folder contents.
Box 7		1937 Box 7, Folder 13 View folder contents.
Box 8		1938 Box 8, Folder 2 View folder contents.
		1939 Box 8, Folder 14 View folder contents.
Box 9		1940 Box 9, Folder 2 View folder contents.
		1943 Box 9, Folder 17 View folder contents.
Box 10		1944 Box 10, Folder 3 View folder contents.
Box 21		1918-1926, 1944 Box 21
		Iowa
Box 1		1918-1922 Box 1, Folder 6 View folder contents.
		1923 Box 1, Folder 17 View folder contents.
Box 4		1929 Box 4, Folder 2 View folder contents.
		1930 Box 4, Folder 13 View folder contents.
Box 5		1931 Box 5, Folder 3 View folder contents.
		1933 Box 5, Folder 20 View folder contents.
Box 6		1934 Box 6, Folder 4 View folder contents.
		1935 Box 6, Folder 14 View folder contents.
Box 7		1936 Box 7, Folder 1 View folder contents.
		1937 Box 7, Folder 14 View folder contents.
Box 8		1938 Box 8, Folder 3 View folder contents.
		1939 Box 8, Folder 15 View folder contents.
Box 9		1940 Box 9, Folder 7 View folder contents.
		1943 Box 9, Folder 18 View folder contents.
Box 10		1944 Box 10, Folder 4 View folder contents.
		1945 Box 10, Folder 17 View folder contents.
		1946 Box 10, Folder 32 View folder contents.
		1947 Box 11, Folder 10 View folder contents.
		1948 Box 11, Folder 23 View folder contents.
		1949 Box 11, Folder 36 View folder contents.
		1950 Box 11, Folder 50 View folder contents.
Box 21		1918-1952 Box 21
		Michigan
Box 1		1918-1923 Box 1, Folder 7 View folder contents.
		1923 Box 1, Folder 18 View folder contents.
Box 2		1924 Box 2, Folder 4 View folder contents.
		1925 Box 2, Folder 14 View folder contents.
		1926 Box 2, Folder 23 View folder contents.
Box 3		1927 Box 3, Folder 5 View folder contents.
		1928 Box 3, Folder 16 View folder contents.
		1929 Box 4, Folder 3 View folder contents.
		1930 Box 4, Folder 14 View folder contents.
		1931 Box 5, Folder 4 View folder contents.
		1932 Box 5, Folder 13 View folder contents.
		1933 Box 5, Folder 21 View folder contents.
		1934 Box 6, Folder 5 View folder contents.
		1935 Box 6, Folder 15 View folder contents.
Box 7		1936 Box 7, Folder 2 View folder contents.
		1937 Box 7, Folder 15 View folder contents.
Box 8		1938 Box 8, Folder 4 View folder contents.
		1939 Box 8, Folder 16 View folder contents.
		1940 Box 9, Folder 8 View folder contents.
		1943 Box 9, Folder 19 View folder contents.
Box 10		1944 Box 10, Folder 6 View folder contents.
		1945 Box 10, Folder 18 View folder contents.
		1946 Box 10, Folder 33 View folder contents.
Box 11		1947 Box 11, Folder 11 View folder contents.
		1948 Box 11, Folder 24 View folder contents.
		1949 Box 11, Folder 37 View folder contents.
Box 12		1950 Box 12, Folder 1 View folder contents.
Box 21		1944 Box 21
		Minnesota
Box 1		1919 Box 1, Folder 1 View folder contents.
		1921 Box 1, Folder 2 View folder contents.
		1922 Box 1, Folder 8 View folder contents.
		1923 Box 1, Folder 19 View folder contents.
Box 2		1924 Box 2, Folder 5 View folder contents.
		1925 Box 2, Folder 15 View folder contents.
		1926 Box 2, Folder 24 View folder contents.
Box 3		1927 Box 3, Folder 6 View folder contents.
		1928 Box 3, Folder 15 View folder contents.
Box 4		1929 Box 4, Folder 4 View folder contents.
		1930 Box 4, Folder 15 View folder contents.
Box 5		1931 Box 5, Folder 5 View folder contents.
		1932 Box 5, Folder 14 View folder contents.
		1933 Box 5, Folder 22 View folder contents.
Box 6		1934 Box 6, Folder 6 View folder contents.
		1935 Box 6, Folder 16 View folder contents.
Box 7		1936 Box 7, Folder 3 View folder contents.
		1937 Box 7, Folder 16 View folder contents.
Box 8		1938 Box 8, Folder 5 View folder contents.
		1939 Box 8, Folder 17 View folder contents.
Box 9		1940 Box 9, Folder 9 View folder contents.
		1943 Box 9, Folder 20 View folder contents.
Box 10		1944 Box 10, Folder 7 View folder contents.
		1946 Box 10, Folder 19 View folder contents.
		1946 Box 10, Folder 34 View folder contents.
Box 11		1947 Box 11, Folder 12 View folder contents.
		1948 Box 11, Folder 25 View folder contents.
		1949 Box 11, Folder 38 View folder contents.
		Missouri
Box 6		1935 Box 6, Folder 17 View folder contents.
Box 7		1936 Box 7, Folder 4 View folder contents.
		1937 Box 7, Folder 17 View folder contents.
Box 8		1938 Box 8, Folder 6 View folder contents.
		1939 Box 8, Folder 18 View folder contents.
Box 9		1940 Box 9, Folder 10-11 View folder 10 contents. View folder 11 contents.
Box 10		1945 Box 10, Folder 20 View folder contents.
		1946 Box 10, Folder 35 View folder contents.
Box 11		1947 Box 11, Folder 13 View folder contents.
		1948 Box 11, Folder 26 View folder contents.
		1949 Box 11, Folder 39 View folder contents.
Box 12		1950 Box 12, Folder 2 View folder contents.
Box 21		1944, 1955 Box 21
		Montana
Box 1		1922 Box 1, Folder 9 View folder contents.
		1923 Box 1, Folder 20 View folder contents.
Box 2		1924 Box 2, Folder 6 View folder contents.
Box 3		1928 Box 3, Folder 14 View folder contents.
Box 4		1929 Box 4, Folder 5 View folder contents.
Box 21		1925-1951 Box 21
		Nebraska
Box 1		1922 Box 1, Folder 10 View folder contents.
		1923 Box 1, Folder 21 View folder contents.
Box 2		1924 Box 2, Folder 7 View folder contents.
		1925 Box 2, Folder 16 View folder contents.
		1926 Box 2, Folder 25 View folder contents.
Box 3		1927 Box 3, Folder 7 View folder contents.
		1928 Box 3, Folder 17 View folder contents.
Box 4		1929 Box 4, Folder 6 View folder contents.
		1930 Box 4, Folder 16 View folder contents.
Box 5		1931 Box 5, Folder 6 View folder contents.
		1932 Box 5, Folder 15 View folder contents.
		1933 Box 5, Folder 23 View folder contents.
Box 6		1934 Box 6, Folder 7 View folder contents.
		1935 Box 6, Folder 18 View folder contents.
Box 7		1936 Box 7, Folder 5 View folder contents.
		1937 Box 7, Folder 18 View folder contents.
Box 8		1939 Box 8, Folder 19 View folder contents.
Box 9		1943 Box 9, Folder 21 View folder contents.
Box 10		1944 Box 10, Folder 8 View folder contents.
Box 21		1919-1934 Box 21
		North Dakota
Box 1		1922 Box 1, Folder 11 View folder contents.
Box 3		1928 Box 3, Folder 18 View folder contents.
Box 4		1929 Box 4, Folder 8 View folder contents.
Box 21		1926-1956 Box 21
Box 22		1918-1944 Box 22
		Ohio
Box 1		1922 Box 1, Folder 12 View folder contents.
		1923 Box 1, Folder 22 View folder contents.
Box 2		1924 Box 2, Folder 8 View folder contents.
		1925 Box 2, Folder 17 View folder contents.
Box 3		1927 Box 3, Folder 8 View folder contents.
		1928 Box 3, Folder 20 View folder contents.
Box 4		1929 Box 4, Folder 7 View folder contents.
		1930 Box 4, Folder 17 View folder contents.
Box 5		1931 Box 5, Folder 7 View folder contents.
		1932 Box 5, Folder 16 View folder contents.
Box 6		1934 Box 6, Folder 9 View folder contents.
		1935 Box 6, Folder 20 View folder contents.
		1936 Box 7, Folder 6 View folder contents.
		1937 Box 7, Folder 19 View folder contents.
		1938 Box 8, Folder 7 View folder contents.
		1939 Box 8, Folder 20 View folder contents.
Box 9		1940 Box 9, Folder 12 View folder contents.
Box 10		1944 Box 10, Folder 10 View folder contents.
		1945 Box 10, Folder 23 View folder contents.
Box 11		1946 Box 11, Folder 1 View folder contents.
		1947 Box 11, Folder 15 View folder contents.
		1948 Box 11, Folder 29 View folder contents.
Box 12		1950 Box 12, Folder 5 View folder contents.
Box 21		1924-1955 Box 21
		Pennsylvania
Box 6		1935 Box 6, Folder 21 View folder contents.
Box 7		1936 Box 7, Folder 7 View folder contents.
		1937 Box 7, Folder 20 View folder contents.
Box 8		1938 Box 8, Folder 8 View folder contents.
		1939 Box 8, Folder 21 View folder contents.
Box 9		1943 Box 9, Folder 23 View folder contents.
Box 10		1944 Box 10, Folder 11 View folder contents.
		1945 Box 10, Folder 24 View folder contents.
Box 11		1946 Box 11, Folder 2 View folder contents.
		1947 Box 11, Folder 16 View folder contents.
		1949 Box 11, Folder 42-43 View folder 42 contents. View folder 43 contents.
Box 12		1950 Box 12, Folder 6 View folder contents.
Box 21		1939-1956 Box 21
		South Dakota
Box 2		1924 Box 2, Folder 9 View folder contents.
		1925 Box 2, Folder 18 View folder contents.
Box 3		1926 Box 3, Folder 1 View folder contents.
		1927 Box 3, Folder 9 View folder contents.
		1928 Box 3, Folder 19 View folder contents.
Box 4		1929 Box 4, Folder 9 View folder contents.
		1930 Box 4, Folder 18 View folder contents.
Box 5		1931 Box 5, Folder 8 View folder contents.
		1932 Box 5, Folder 17 View folder contents.
Box 6		1933 Box 6, Folder 1 View folder contents.
		1934 Box 6, Folder 8 View folder contents.
		1935 Box 6, Folder 19 View folder contents.
Box 7		1936 Box 7, Folder 8 View folder contents.
Box 8		1938 Box 8, Folder 9 View folder contents.
Box 9		1943 Box 9, Folder 22 View folder contents.
		1944 Box 10, Folder 9 View folder contents.
Box 21		1918-1948 Box 21
		Virginia
Box 9		1942 Box 9, Folder 13 View folder contents.
		1943 Box 9, Folder 24 View folder contents.
Box 10		1944 Box 10, Folder 12 View folder contents.
		1945 Box 10, Folder 25 View folder contents.
Box 11		1946 Box 11, Folder 3 View folder contents.
		1947 Box 11, Folder 17 View folder contents.
		1948 Box 11, Folder 30 View folder contents.
		1949 Box 11, Folder 44 View folder contents.
Box 12		1950 Box 12, Folder 7 View folder contents.
Box 21		1955 Box 21
		Washington
Box 10		1944 Box 10, Folder 38 View folder contents.
		1945 Box 10, Folder 26 View folder contents.
Box 11		1946 Box 11, Folder 4 View folder contents.
		1947 Box 11, Folder 18 View folder contents.
		1948 Box 11, Folder 31 View folder contents.
		1949 Box 11, Folder 45 View folder contents.
Box 12		1950 Box 12, Folder 8 View folder contents.
Box 21		1944-1955 Box 21
		West Virginia
Box 7		1936 Box 7, Folder 9 View folder contents.
		1937 Box 7, Folder 22 View folder contents.
Box 8		1938 Box 8, Folder 10 View folder contents.
Box 9		1939 Box 9, Folder 3 View folder contents.
		1942 Box 9, Folder 14 View folder contents.
		1943 Box 9, Folder 25 View folder contents.
Box 10		1944 Box 10, Folder 13 View folder contents.
		1945 Box 10, Folder 27 View folder contents.
Box 11		1946 Box 11, Folder 5 View folder contents.
		1947 Box 11, Folder 19 View folder contents.
		1948 Box 11, Folder 32 View folder contents.
		1949 Box 11, Folder 46 View folder contents.
Box 12		1950 Box 12, Folder 9 View folder contents.
Box 22		1938-1956 Box 22
		Wisconsin
Box 1		1922 Box 1, Folder 13 View folder contents.
		1923 Box 1, Folder 20a View folder contents.
Box 2		1924 Box 2, Folder 10 View folder contents.
		1925 Box 2, Folder 19 View folder contents.
		1926 Box 3, Folder 2 View folder contents.
		1927 Box 3, Folder 10 View folder contents.
		1928 Box 3, Folder 21 View folder contents.
Box 4		1929 Box 4, Folder 10 View folder contents.
Box 5		1931 Box 5, Folder 9 View folder contents.
		1932 Box 5, Folder 18 View folder contents.
Box 6		1935 Box 6, Folder 22 View folder contents.
Box 7		1936 Box 7, Folder 10 View folder contents.
		1937 Box 7, Folder 23 View folder contents.
Box 8		1938 Box 8, Folder 11 View folder contents.
Box 9		1939 Box 9, Folder 4 View folder contents.
		1942 Box 9, Folder 15 View folder contents.
Box 10		1943 Box 10, Folder 1 View folder contents.
		1944 Box 10, Folder 14 View folder contents.
		1945 Box 10, Folder 28 View folder contents.
Box 11		1946 Box 11, Folder 6 View folder contents.
		1947 Box 11, Folder 20 View folder contents.
		1948 Box 11, Folder 33 View folder contents.
		1949 Box 11, Folder 47 View folder contents.
Box 12		1950 Box 12, Folder 10 View folder contents.
Box 22		1918-1954 Box 22
		Wyoming
Box 1		1921 Box 1, Folder 4 View folder contents.
		1923 Box 1, Folder 23 View folder contents.
Box 2		1925 Box 2, Folder 20 View folder contents.
Box 3		1928 Box 3, Folder 11 View folder contents.
Box 5		1931 Box 5, Folder 10 View folder contents.
Box 6		1934 Box 6, Folder 2 View folder contents.
		1935 Box 6, Folder 11 View folder contents.
		1936 Box 6, Folder 24 View folder contents.
Box 7		1937 Box 7, Folder 12 View folder contents.
Box 8		1938 Box 8, Folder 12 View folder contents.
Box 9		1939 Box 9, Folder 5 View folder contents.
		1940 Box 9, Folder 1 View folder contents.
Box 22		1934 Box 22
		Multiple States
Box 2		Progress reports by state and date, 1988 Box 2, Folder 26 View folder contents.
Box 4		Progress reports by state, 1928-1930 Box 4, Folder 19-21 View folder 19 contents. View folder 20 contents. View folder 21 contents.
Box 21		General, 1956 Box 21
Box 10		Colorado and Wyoming, 1944 Box 10, Folder 2 View folder contents.
		Colorado and Wyoming, 1945 Box 10, Folder 15 View folder contents.
		Colorado and Wyoming, 1946 Box 10, Folder 30 View folder contents.
Box 11		Colorado and Wyoming, 1947 Box 11, Folder 7 View folder contents.
		Colorado and Wyoming, 1948 Box 11, Folder 21 View folder contents.
		Colorado and Wyoming, 1949 Box 11, Folder 34 View folder contents.
		Colorado and Wyoming, 1950 Box 11, Folder 48 View folder contents.
Box 10		Nebraska and South Dakota, 1945 Box 10, Folder 21 View folder contents.
		Nebraska and South Dakota, 1946 Box 10, Folder 36 View folder contents.
Box 11		Nebraska and South Dakota, 1947 Box 11, Folder 14 View folder contents.
		Nebraska and South Dakota, 1948 Box 11, Folder 27 View folder contents.
		Nebraska and South Dakota, 1949 Box 11, Folder 40 View folder contents.
Box 12		Nebraska and South Dakota, 1950 Box 12, Folder 3 View folder contents.
Box 21		Nebraska and South Dakota, 1950 Box 21
Box 10		North Dakota and Montana, 1944 Box 10, Folder 5 View folder contents.
		North Dakota and Montana, 1945 Box 10, Folder 22 View folder contents.
		North Dakota and Montana, 1946 Box 10, Folder 37 View folder contents.
Box 11		North Dakota and Montana, 1947 Box 11, Folder 8 View folder contents.
		North Dakota and Montana, 1948 Box 11, Folder 28 View folder contents.
		North Dakota and Montana, 1949 Box 11, Folder 41 View folder contents.
Box 12		North Dakota and Montana, 1950 Box 12, Folder 4 View folder contents.
		State Extension and State Department of Agriculture Activities Supporting Barberry Eradication Campaigns   Note Includes miscellaneous reports, flyers, and correspondence from state extension services, state departments of agriculture and the USDA.
		Colorado
Box 26		Magazine Features, Bulletin and Pamphlets 1920-1951  Box 26
		Letters, "Rust Busters," Cards, Miscellaneous Information 1941 Box 26
		Illinois
Box 25		State Department of Agriculture, Annual Reports 1926-1958 Box 25
		Bulletins, Pamphlets, Magazine Features, Letters, Cards, "Rust Busters," and Progress Reports 1928-1946  Box 25
		Indiana
Box 25		Department of Agricultural Extension, Purdue University, Annual Report 1918-1941  Box 25
		Bulletins and Pamphlets 1918-1944  Box 25
		Magazine Feature Articles 1942-1955  Box 25
		Progress Reports 1928-1930  Box 25
Box 26		Letters, Informational Bulletins 1931  Box 26
		Iowa
Box 25		Magazine Feature Articles 1951  Box 25
		Letters, "Rust Busters," Cards, Miscellaneous Information 1934-1956  Box 25
		Progress Reports 1933-1941  Box 25
		State Department of Agriculture, "Yearbook of Agriculture" 1938-1955  Box 25
		Bulletins and Pamphlets 1920-1955  Box 25
		Michigan
Box 25		Progress Reports 1929-1930  Box 25
		Magazine Feature Articles 1947 Box 25
		Letters, "Rust Busters," Cards, Miscellaneous Information 1935-1960  Box 25
		Bulletins and Pamphlets 1919-1949  Box 25
		Department of Agriculture 1931-1962  Box 25
		Minnesota
Box 25		Magazine Features 1935-1951  Box 25
		Progress Reports 1928-1930  Box 25
		Letters, "Rust Busters," Cards, Miscellaneous Information 1932-1959  Box 25
		Bulletins and Pamphlets 1918-1945  Box 25
		State Department of Agriculture Reports 1919-1934  Box 25
		Missouri
Box 25		State Department of Agriculture 1937-1953  Box 25
		Letters, "Rust Busters," Cards, Miscellaneous Information, Progress Reports 1938-1955  Box 25
		Montana
Box 25		Agricultural Experiment Station Annual Reports 1919, 1924, 1953-1954  Box 25
		Bulletins and Pamphlets 1925-1951  Box 25
		Letters, "Rust Busters," Cards, Miscellaneous Information 1918-1935  Box 25
		Magazine Features 1943-1951  Box 25
		Progress Reports 1928-1930 Box 25
		Nebraska
Box 25		Agricultural Experiment Station Annual Reports 1945-1958  Box 25
Box 26		Bulletins and Pamphlets 1919-1942  Box 26
		Letters, "Rust Busters," Cards, Miscellaneous Information 1930-1959 Box 26
		Magazine Features 1943-1947  Box 26
		Progress Reports 1929-1937  Box 26
		North Dakota
Box 26		Progress Reports 1928-1930  Box 26
		Bulletins and Pamphlets 1923-1954  Box 26
		Letters, "Rust Busters," Cards, Miscellaneous Information 1929-1937  Box 26
		Ohio
Box 25		Bulletins, Pamphlets, Progress Reports 1920-1943 Box 25
Box 26		Department of Agriculture 1944-1958  Box 26
		Bulletins and Pamphlets 1918-1951  Box 26
		Letters, "Rust Busters", Cards, Miscellaneous Information 1936-1939  Box 26
		Pennsylvania
Box 25		Bulletins, Magazines, Pamphlets, Progress Reports 1944-1955 Box 25
		South Dakota
Box 25		Magazines, "Rust Busters," Miscellaneous Information 1932-1951 Box 25
		Progress Reports, Bulletins, Pamphlets 1904-1948  Box 25
Box 26		Department of Agriculture Annual Reports 1919-1957  Box 26
		Virginia
Box 26		Department of Agriculture and Immigration, Bulletins 1945-1954  Box 26
		Magazine Articles and Bulletins 1937-1955  Box 26
		Washington
Box 26		Annual Reports, Progress Reports, Informational and Publicity Material, Magazine Articles 1946-1955  Box 26
		West Virginia
Box 26		Department of Agriculture Biannual Reports 1941-1950  Box 26
		Bulletins, Pamphlets, Magazines and Letters 1938-1955  Box 26
		Wisconsin
Box 25		Department of Agriculture Annual Reports 1921-1962  Box 25
		Bulletins and Pamphlets 1918-1956 Box 25
		Feature Articles, Letters, Cards and Miscellaneous Informational Materials 1923-1951 Box 25
		Wyoming
Box 25		Agricultural Extension Bulletins, Progress Reports, Letters, Cards, and Informational Data 1918-1942  Box 25
		Miscellaneous
Box 25		Barberry Perpetuation, Unpublished Reports, 1922 Box 25 Note  Includes photographs and data.
		Barberry Eradication Publications   Note  Includes scholarly and popular articles, news clippings, maps, public awareness materials, and selected government publications focusing on the goal of eradicating the common barberry and progress towards that goal.
Box 15		"A Review of the Aims, Accomplishments and Objectives of the Barberry Eradication Program," E.C. Stakman 1935  Box 15, Folder 31 View folder contents.
Box 21		"Observations of Rate of Growth in Barberry: The Kelly Area, Story County Iowa," undated  Box 21
Box 22		"Questions Relative to Barberry Eradication That Every Field Man Should be Able to Answer Fully" undated  Box 22
Box 24		"Brief Interesting Facts About Black Stem Rust and the Barberry Eradication Campaign" Rust Prevention Association circa 1932  Box 24
		Barberry Eradication Histories 1914-1954  Box 24
Box 25		Barberry Eradication Files, Magazine Articles, Bulletins, Circulars 1921-1954  Box 25
		Barberry Eradication Headquarters, Research Articles 1919-1926  Box 25
		Barberry Eradication Headquarters, Statements and Summaries 1944-1954  Box 25
		Barberry Eradication Headquarters, Tables Given on Radio, Television and Conferences 1937-1950  Box 25
		Barberry Eradication Headquarters, Informational and Teaching Materials 1931-1932  Box 25
		Barberry Eradication Headquarters, Slide Catalogs, Filmstrips, Et Cetera 1931-1932  Box 25
		Popular Articles on Stem Rust 1936-1956  Box 25
		Barberry Eradication Headquarters, Foreign Plant Quarantines and In Service Training Series 1940-1952  Box 25
Box 26		Barberry Quarantine and Eradication 1948-1967  Box 26
		"Chemical Eradication and Nursery Inspection, Sherman and Sheridan Red Barberry " 1944-1959  Box 26
		"Barberry Not Banned by Quarantine," undated  Box 26
		"Bread or Barberries" 1928  Box 26
		"Chemical Eradication of the Common Barberry," USDA Department Circular 332 1924  Box 26
		"Destroy the Common Barberry," Farmers' Bulletin 1058 undated  Box 26
		"Kill Barberry Bushes," Farmers' Bulletin 2014 undated  Box 26
		"The Common Barberry and Black Stem Rust," Farmers' Bulletin 1544 1930  Box 26
		"Kill the Common Barberry with Chemicals" 1923  Box 26
		"Barberry Eradication in Stem Rust Control," Leaflet 416 1957  Box 26
		"Methods of Eradicating the Common Barberry," Farmers' Bulletin 1451 1926  Box 26
		"Progress of Barberry Eradication," USDA Department Circular 188 1921  Box 26
		"Protect Grain Crops from Stem Rust," USDA 1938  Box 26
		"Rust Epidemics of Local Areas Betray Barberries' Presence" 1928  Box 26
		"Some Effects of Sodium Arsenate on Barberry" 1925  Box 26
		"The Black Stem Rust and the Barberry," E. C. Stakman 1918  Box 26
		"The Common Barberry and How to Kill It," USDA Department Circular 356 1925  Box 26
		"The Barberry Bush and it's Law," 1915  Box 26 Note  Translated from the Danish.
		"Plant Disease Surveys," 1950  Box 26
Box 50		Clippings from Der National Farmer und Haus und Bauernfreund September, 1928  Box 50 Note  Articles from several issues of a Midwestern German-language newspaper on rust in grains.
		Barberry Eradication Tabloid 1920  Box 50 Note  Article on cereal rust, published and distributed by the National Crop Improvement Service.
		Minnesota Barberry Eradication Activities   Note Correspondence, administrative documents, reports, summaries, publications, clippings, affidavits, and publicity concerning Barberry eradication activity in Minnesota. Minnesota materials may also be found in other series and subseries.
Box 22		Melander Reassignment 1945  Box 22
Box 23		Clippings From Minnesota Newspapers Concerning Agent Visits to the Area 1926  Box 23
		Clippings From Minnesota Newspapers 1929  Box 23
		Clippings, Barberry Eradication, by County and City 1930  Box 23
		Clippings from Various Minnesota Newspapers 1927-1928, 1939-1941 ( 3 folders)  Box 23
		Clippings and Correspondence 1942  Box 23
		Clippings, Barberry Eradication Activities 1935-1939 ( 3 folders)  Box 23
		Publicity and Education in Minnesota Newspapers 1928  Box 23
		Clippings on Barberry Spotting Bonfires 1943-1946 ( 4 folders)  Box 23
		Clippings, Stem Rust 1937-1953  Box 23
Box 24		Barberry Affidavits Compiled 1924  Box 24
		Rust Spread 1924  Box 24 Note  Includes 3 hand-drawn maps.
		Barberry and Rust Spread Affidavits 1925-1926 (3 folders)  Box 24
		Rust Spreads Field Reports and Affidavits, by County 1928-1929 ( 2 folders)  Box 24
		Rust Observations 1937-1938 ( 2 folders)  Box 24
		Rust Spreads 1939-1941 ( 2 folders)  Box 24
		Agriculture and Seed Laws of Minnesota circa 1941  Box 24
		Barberry Eradication Laws 1944-1946  Box 24
		Collection of Reports Recording Observations of Stem Rust Spreading to Grains and Grasses from Barberry 1943  Box 24
		Stem Rust Control Conference Report 1950  Box 24
		Requests for Information Concerning Stem Rust 1943-1951  Box 24
		Summary of Identification of Rust Collection, by County 1945  Box 24
		"Sources of Stem Rust Resistance and Breeding Program in Minnesota" 1948  Box 24
		Selected Weekly Rust Summaries 1942-1951 ( 2 folders)  Box 24
		Crop Districts 1939-1945  Box 24
Box 27		Barberry Eradication Progress Reports 1939-1951  Box 27
		Memos, Minneapolis Office of Barberry Eradication Program 1948-1950  Box 27
		Barberry Eradication, Correspondence 1918-1920 ( 2 folders)  Box 27
Box 28		Barberry Eradication Project: Program Annual Report 1954-1956, 1959 ( 4 folders)  Box 28
		"One Half Century of Service: The First 50 Years of Barberry Eradication" 1972  Box 28
		Clippings on Barberry Eradication, by City and County 1931-1934  Box 28
Box 50		Clippings from the Hokah Chief regarding Barberry eradication October 8, 1936  Box 50
		Clipping from the Minneapolis Sunday Tribune October 27, 1935  Box 50
		Clipping from the Minneapolis Tribune on Black Rust July 11, 1926  Box 50
		International Barberry Research and Activities   Note Articles, reports and correspondence focusing on barberry eradication and rust studies in countries outside the United States.
Box 22		Barberries and Rust in Foreign Countries, includes Stakman Report and Correspondence 1922  Box 22
		Russia, Barberry Research 1935-1936  Box 22
		Denmark, Barberry Eradication 1939  Box 22
		Norway, Barberry Eradication 1924  Box 22
		Sweden, Barberry Eradication 1915-1919  Box 22
		Germany, Barberry Eradication 1935  Box 22
		Canada, Barberry Eradication 1918-1951  Box 22
		England, Barberry Eradication 1921  Box 22
		Hungary, Barberry Eradication 1920  Box 22
		France, Barberry Eradication 1923  Box 22
		Scotland, Barberry Eradication 1949  Box 22
Box 24		Mexico, Non-Participating States 1923-1947  Box 24
		Miscellaneous Foreign Countries, Non-Participating States 1932-1949  Box 24
		Canada, Non-Participating States 1920-1954  Box 24
Box 25		Ontario, Barberry Eradication 1952-1967  Box 25
		Miscellaneous Materials on Barberry Eradication Activities   Note This subseries includes miscellaneous reports from individuals, including E.C. Stakman; professional organizations, including the Rust Prevention Association, the Bureau of Plant Industry and the Rust Laboratory; as well as affidavits from farmers concerning Barberry sightings.
Box 7		Correspondence, L. K. Wright to R. O. Bulger and W. L. Popham, USDA 1938  Box 7, Folder 21 View folder contents.
Box 10		Bureau of Plant and Insect Control Reports, Colorado 1929-1954  Box 10, Folder 29 View folder contents.
Box 19		Animal and Plant Health Inspection Service (APHIS) Termination 1972-1978  Box 19
Box 21		Barberry Eradication Campaign Data, Rust Prevention Association 1926  Box 21
		Annual Report of Publicity and Educational Work in the Barberry Eradication Campaign 1923, 1926 ( 2 folders)  Box 21
		Essential Reading for Barberry Eradication Scouts 1928-1931  Box 21
		Miscellaneous Barberry Activities, Indiana 1922  Box 21
		Miscellaneous Barberry Activities, Missouri 1942  Box 21
		Miscellaneous Barberry Activities, Montana 1930-1942  Box 21
		Miscellaneous Barberry Activities, Nebraska 1935, 1949  Box 21
		Miscellaneous Barberry Activities, North Dakota 1928, 1935, 1947  Box 21
		Miscellaneous Barberry Activities, Ohio 1928, 1935-1936, 1947  Box 21
		Miscellaneous Barberry Activities, Pennsylvania 1936, 1939, 1942  Box 21
		Miscellaneous Barberry Activities, South Dakota 1919-1931  Box 21
		Miscellaneous Barberry Activities, Virginia circa 1940, 1947-1949  Box 21
		Miscellaneous Barberry Activities, Washington 1945-1949  Box 21
		Miscellaneous Barberry Activities, West Virginia 1942, 1949, 1952  Box 21
		Miscellaneous Barberry Activities, Wisconsin 1923-1928  Box 21
Box 22		Barberry Eradication Handbook of Operations 1945  Box 22
		Barberry Eradication, Miscellaneous 1935-1943  Box 22
		Control and Regulatory Services, Report of Research, Service and Marketing Educational Work in the USDA 1950  Box 22
		Information on Barberry Eradication Compiled by Laura Mae Hamilton 1934-1937  Box 22
		Public Awareness Efforts 1918-1919  Box 22
		Data Collection 1940-1941  Box 22
		Barberry and Chemicals 1945-1947  Box 22
		Barberry Control Meetings 1948  Box 22
		Clippings on Control 1947-1948  Box 22
		Barberry Law circa 1950 ( 2 folders)  Box 22
		Barberry Eradication, List of Bulletins and Publications by State 1918-1959  Box 22
		Federal and State Leaders of Barberry Eradication Efforts 1918-1956  Box 22
		Public Education Information Concerning Barberry Identification and Eradication, North and South Dakota undated  Box 22
Box 23		Maps of Barberry Density, State and Regional 1918-1925  Box 23
		Barberry Eradication Program Budgets 1935-1955 ( 2 folders)  Box 23
Box 24		"Chemical Eradication" 1932-1934  Box 24
		Rust Spread Posters 1945  Box 24
		"Cardinal Facts Regarding Stem Rust" Barberry Scout Materials 1931-1945  Box 24
		Barberry Eradication Maintenance Program 1950-1951  Box 24
		Arnold Arboretum, Bulletin 1923-1937  Box 24
Box 26		Buckthorn Eradication Program in Wisconsin 1957  Box 26
		Functions of the Federal Rust Laboratory undated  Box 26
		International Problems, Plant Disease Control 1947  Box 26
		Stem Rust Epidemics of 1953 and 1954 circa 1954  Box 26
		Barberry Eradication, Expenses 1919 ( 2 folders)  Box 26
		Barberry Eradication 1919-1921 ( 3 folders)  Box 26
Box 27		Barberry Eradication 1899, 1918, 1922 ( 2 folders)  Box 27
		Barberry Eradication, General Correspondence 1918  Box 27
		Correspondence, John M. Holzinger, Barberry Scout 1918-1919  Box 27
		Extension Service, University of Nebraska College of Agriculture 1942  Box 27
		Thornless Barberry Varietal, Correspondence 1946  Box 27
		Barberry Eradication, Miscellaneous 1920  Box 27
		Elementary School Related Activities and Accounts 1930-1932  Box 27
		Eradication Outreach 1920-1929, 1948-1950 ( 3 folders)  Box 27 Note  Includes radio scripts, slide narration, public mailings, news stories, and circulars.
		Eradication News Articles 1950  Box 27
		Annual Report 1948-1950  Box 27
		Barberry Eradication, Public Information Activities 1943-1951  Box 27
		Barberry Eradication Conference, Chicago, Illinois 1951  Box 27
		Barberry Eradication Circulars 1940-1941  Box 27
		General Interest, Washington Office, Bureau of Entomology and Plant Quarantines; Agricultural Research Administration; USDA 1944-1951  Box 27
Box 29		Tentative Budget for Barberry Eradication Studies on the Spread of Rust 1922  Box 29
		Progress Reports of Entire Barberry Eradication Campaign 1918-1921  Box 29
Box 30		Chemical Test European Barberry, Pennsylvania 1952-1956  Box 30
		Chemical Test Native Barberry, Colorado 1952-1953  Box 30
		Chemical Test Native Barberry, Virginia 1952-1956 ( 2 folders)  Box 30
		Stem Rust Epidemiology   Note Beginning in 1924, stem rust epidemiology studies became a part of the national Barberry Eradication campaign. Rust spread studies were carried out by trained teams of rust observers traveling particular routes across regions identifying the progress of rust infestations. Observation was an important part of the eradication process, as understanding how rust spread aided in identifying potentially vulnerable areas and predicting outbreaks. The reports were written by agents in the USDA's rust studies, and summarized by the Agent in charge of the program. The series also contains correspondence, data, and field notes.
		Reports and Studies   Note The subseries contains agent weekly reports and weekly cumulative totals, quarterly and annual reports from state leaders, progress reports, maps, telegrams, data analysis, tables and memoranda.
Box 12		Rust Epidemiology Studies, Spring and Summer 1921  Box 12, Folder 12 View folder contents.
Box 12		Rust Epidemiology Studies, Yearbook 1922  Box 12 , Folder 13 View folder contents.
Box 12		Assembled Reports 1924  Box 12, Folder 14 View folder contents.
		Individual Epidemiology Reports 1929  Box 12, Folder 19 View folder contents.
		Annual Report and Individual Epidemiology Reports 1930  Box 12, Folder 20 View folder contents.
		Annual Report of Epidemiology Investigations 1931  Box 12, Folder 21 View folder contents.
		Annual Report on Epidemiology Investigations and Individual Reports 1932  Box 12, Folder 22 View folder contents.
Box 13		Rust Epidemiology Reports 1933-1935  Box 13, Folder 1-3 View folder 1 contents. View folder 2 contents. View folder 3 contents.
		Annual Report on Stem Rust Epidemiology Studies 1936-1951  Box 13, Folder 4-18 View folder 4 contents. View folder 5 contents. View folder 6 contents. View folder 7 contents. View folder 8 contents. View folder 9 contents. View folder 10 contents. View folder 11 contents. View folder 12 contents. View folder 13 contents. View folder 14 contents. View folder 15 contents. View folder 16 contents. View folder 17 contents. View folder 18 contents.
		Notes for Annual Report 1951  Box 13, Folder 19 View folder contents.
		Meteorological Data 1922  Box 13, Folder 20 View folder contents.
		Annual Progress Reports and Plans and Projects, Organization and Personnel 1923-1924  Box 13, Folder 21 View folder contents.
		Report on Relation Between Barberries and Black Stem Rust in Europe, E.C. Stakman undated  Box 13, Folder 22 View folder contents.
Box 14		Stem Rust Studies in Texas 1922-1923  Box 14, Folder 1 View folder contents.
		Report of Rust Observation Trip Made by E.C. Stakman and Wallace Butler to Mexico 1922  Box 14, Folder 2 View folder contents.
		Barberry Infection in New York 1923  Box 14, Folder 3 View folder contents.
		Barberry Percentage of Rust in Four Quarters of a State in an Eradication Area 1923  Box 14, Folder 4 View folder contents.
		Reports from State Leaders, Illinois, Minnesota, North Dakota, Wisconsin, and Wyoming 1923  Box 14, Folder 11 View folder contents.
		Project Reports, Rust Investigations 1923  Box 14, Folder 12 View folder contents.
		Rust Wheat Development Correlation, Correspondence 1923  Box 14, Folder 13 View folder contents.
		"Summary on the Stem Rust Epidemic…" and "Report on the Past Season's Work on the Epidemiology of Stem Rust" 1923  Box 14, Folder 16 View folder contents.
		Preliminary Experiments with Sulphur Dust for Controlling Stem Rust of Wheat 1924  Box 14, Folder 33 View folder contents.
		Final Report of Stem Rust Epidemiology, Texas 1923-1924  Box 14, Folder 43 View folder contents.
		Reports of Epidemiology 1925  Box 14, Folder 60 View folder contents.
		Sulphur Dusting, Correspondence and Reports 1926  Box 14, Folder 61 View folder contents.
		First Reports of Leaf Rust on Barberries and Grain 1925  Box 14, Folder 62 View folder contents.
		Rust Epidemiology Summaries from State Leaders, Including Canada 1925  Box 14, Folder 63 View folder contents.
		Summary of the Observations on the Epidemic 1926  Box 14, Folder 66 View folder contents.
		Barberry and Epidemiology Reports from States 1926  Box 14, Folder 67 View folder contents.
		Weekly Summaries from Barberry Leaders, Including Reports from Field Men 1927  Box 14, Folder 68 View folder contents.
		Weekly Summaries from Barberry Leaders 1928  Box 14, Folder 69 View folder contents.
		Epidemiology Notes from Pennsylvania and New York 1928  Box 14 View folder contents.
		Maps of Rust Spread 1928  Box 14, Folder 73 View folder contents.
		Report on the Cereal Rust Survey in Mexico 1928  Box 14, Folder 74 View folder contents.
Box 15		Weekly Summaries from Barberry Leaders 1929  Box 15, Folder 1 View folder contents.
Box 15		Rust Epidemiology Studies 1929  Box 15 , Folder 3 View folder contents.
Box 15		Stem Rust Epidemiology 1930  Box 15, Folder 5 View folder contents.
		Rust Spread, Correspondence, Eradication Issues 1930  Box 15, Folder 6 View folder contents.
		Weekly Summaries for Barberry Issues 1930  Box 15, Folder 7 View folder contents.
		Weekly Rust Summaries 1931  Box 15, Folder 8 View folder contents.
		South-to-North Movement 1931  Box 15, Folder 9 View folder contents.
		Weekly Stem Rust Reports for North Dakota 1931  Box 15, Folder 10 View folder contents.
		Stem Rust Survey in Minnesota 1931  Box 15, Folder 11 View folder contents.
		Memorandum to Leaders in Barberry Eradication Regarding Assistance Needed to Epidemiology Studies 1931  Box 15, Folder 12 View folder contents.
		Special Rust Survey Project in Minnesota and the Dakotas 1931  Box 15, Folder 13 View folder contents.
		Weekly Reports from State Leaders 1932  Box 15, Folder 14 View folder contents.
		Sulphur Dusting 1932  Box 15, Folder 15 View folder contents.
		Miscellaneous Reports on Conditions Affecting Stem Rust Spread by State Leaders. 1932-1933  Box 15, Folder 16 View folder contents.
		Annual Report, Cooperative Cereal Rust Investigations 1933  Box 15, Folder 17 Note  Division of Cereal Crops and Diseases, Bureau of Plant Industry, USDA and Agricultural Experiment Station, University of Minnesota. View folder contents.
Box 15		Weekly Rust Reports by State Leaders, Mexico and U.S., 1933 Box 15, Folder 18 View folder contents.
Box 15		Early Stem Rust Evidence Correspondence 1934  Box 15, Folder 19 View folder contents.
Box 15		Weekly Rust Reports by State Leaders, 1934 Box 15, Folder 20 View folder contents.
		Weekly Progress Reports by State Leaders, 1935 Box 15, Folder 22 View folder contents.
Box 15		Field Reports on Wheat Rust Epidemic in North Dakota, South Dakota, and Minnesota by E.C. Stakman 1935  Box 15, Folder 23 View folder contents.
		Tables of First Sightings of Stem Rust on Wheat and Oats 1936  Box 15, Folder 24 View folder contents.
Box 15		Weekly Rust Reports by State Leaders, 1935-1937 Box 15, Folder 25-29 View folder 25 contents. View folder 26 contents. View folder 27 contents. View folder 28 contents. View folder 29 contents.
		Barberry Infections, 1935-1936 Box 15, Folder 32 View folder contents.
Box 16		Reports from Field, E.C. Stakman 1937  Box 16
		Weekly Rust Reports by State Leaders 1938 ( 2 folders)  Box 16
		Barberry Infection and Stem Rust Spread, Miscellaneous Correspondence and Observation 1938  Box 16
		"Rust Reports and Rust Summaries" 1937-1939 ( 2 folders)  Box 16 Note  Formerly titled the "Stem Rust Reporter"
		Weekly Rust Reports 1943  Box 16
		Stem Rust on the U.S. East Coast 1943  Box 16
		Notes for Annual Report 1944  Box 16
		Rust Infection Activity, Fall 1942-1943  Box 16
		Weekly Rust Reports 1944  Box 16
		Weekly Rust Reports, D. Fletcher and R. Cotter 1945  Box 16
		Fall and Winter Survey Trip Report 1946  Box 16
		Miscellaneous Weekly Rust Reports 1947  Box 16
		Stem Rust Survey 1937  Box 16
		Stem Rust Mexico 1938  Box 16
		Weekly Rust Reports by State 1943  Box 16
		Weekly Rust Reports by State, R. Cotter and D. Fletcher 1944  Box 16
		Weekly Rust Reports by State 1944-1945 ( 3 folders)  Box 16
		Rust Reports by State 1946-1947 (2 folders)  Box 16
Box 16-17		Weekly Rust Reports by State 1948-1951 (6 folders)  Box 16-17
Box 17		Weekly Reports, Canada and Mexico 1952  Box 17
		Weekly Reports by State 1952-1953 (3 folders)  Box 17
		State Reports, Fall and Winter 1954-1955  Box 17
		Weekly Reports by State 1956  Box 17
		Fall 1950 Rust Infection, Correspondence and Discussion 1950-1951  Box 17
		Weekly Rust Reports 1949  Box 17
		Weekly Rust Reports, D. Fletcher 1949  Box 17
		Weekly Rust Reports 1949  Box 17
		Weekly Rust Reports, Mexico, E.C. Stakman, 1949  Box 17
		Weekly Rust Reports, R. Cotter and D. Fletcher 1951  Box 17
		Notes for Annual Report, E.C. Stakman, Summary Included 1952  Box 17
		Weekly Rust Reports, D. Fletcher and R. Cotter 1952  Box 17
		Overview of Stem Rust Epidemic and Weekly Reports from D. Fletcher and R. Cotter 1953-1954  Box 17
		Notes for Annual Report 1953  Box 17
		Weekly Rust Reports 1954 ( 3 folders)  Box 17
		Notes for Annual Report 1954  Box 17
		Epidemiology 1954  Box 17
		Weekly Rust Reports 1955  Box 17
		Weekly Rust Reports 1955  Box 17
		Correspondence Regarding Stem Rust Reports 1955  Box 17
		Weekly Rust Reports 1956  Box 17
		Stem Rust Studies, Notes for Annual Report 1955  Box 17
Box 18		Notes for Annual Report, Stem Rust 1958  Box 18
		Progress Report on Special Epidemiological Studies, USDA Agricultural Research Service 1956  Box 18
		Notes for Annual Report 1956  Box 18
		Annual Report Fall 1957  Box 18
		Notes for Annual Report, Stem Rust 1957  Box 18
		Weekly Reports on Stem Rust 1957  Box 18
		Incoming Rust Reports 1958  Box 18
		Notes for Annual Report, Stem Rust 1959  Box 18
		Notes for Annual Report, Stem Rust 1960  Box 18
		Stripe Rust, Related Correspondence Relating to Pacific Northwest 1960  Box 18
		Weekly Rust Reports 1959  Box 18
		Weekly Rust Reports 1960  Box 18
		Notes for Annual Report, Stem Rust 1961  Box 18
		Stripe Rust of Wheat in the Columbia Basin, Pacific Northwest 1961  Box 18
		Weekly Rust Reports 1961  Box 18
		Weekly Rust Reports 1962  Box 18
		Notes for Annual Report, Stem Rust 1962  Box 18
		Relating to Conditions in Texas, Fall 1956  Box 18
		State Reports, Fall and Winter 1957  Box 18
		Weekly Reports by State 1957-1958 ( 4 folders)  Box 18
		Slide Exposures for Washington, Oregon, and Idaho 1959  Box 18
		Weekly Reports by State 1959-1960 ( 4 folders)  Box 18
		Weekly Reports by State 1961-1963 ( 7 folders)  Box 18
Box 19		Weekly Reports by State 1939-1941 ( 4 folders)  Box 19
		Weekly Reports by State and Region 1942 ( 3 folders)  Box 19
		Epidemiology, Progress and Rust Reports 1939-1942 (8 folders) ()  Box 19
		Notes for Annual Report 1963  Box 19
		Epidemiology, General 1937  Box 19
		Epidemiology, General 1940  Box 19
		Epidemiology, Inoculation Results 1920-1934  Box 19
		Epidemiology, Slide Exposures 1939-1940  Box 19
		Epidemiology, Stem Rust Epidemiology Studies 1939  Box 19
Box 21		Stem Rust Epidemic, Annual Overviews 1917-1962 ( 2 folders)  Box 21
Box 22		Annual Report Addendums, Illinois and Iowa 1943  Box 22
		Ohio, Miscellaneous Rust Studies 1931, 1944  Box 22
Box 23		Stem Rust Epidemiology; First Dates of Appearance 1917-1963  Box 23
		"First Appearance of Stem Rust Away From Barberry Bushes" Compilation, by State 1917-1950  Box 23
		First Rust Occurrences, by Date and State 1919-1977  Box 23
		First Occurrences of Stem Rust on Wheat and Oats, by State and Date 1914-1963  Box 23
		First Occurrence of Stem Rust Infection in States on Barberry Bushes, by State and Date 1916-1948  Box 23
Box 24		Rust Memoranda from E. C. Stakman 1942-1950  Box 24
		Weekly Rust Summaries 1944  Box 24
		Weekly Rust Summaries, North Dakota 1950-1951  Box 24
		Rust Loss in Grains for All States, Selected Collections 1915-1938  Box 24
		Selected Reports on the Structure and Accomplishments of Stem Rust Control Programs 1930-1949  Box 24
		Early Rust Spread Data 1943  Box 24
		Rust Spreads Observation Data Collection 1946-1949  Box 24
		Rust Lab, Stem Rust Epidemiology Publications 1930-1955  Box 24 Note  Primarily authored by E.C. Stakman.
Box 26		Epidemiology of Cereal Rusts 1934  Box 26
		Stem Rust Control Program 1933  Box 26
		Stem Rust Epidemiology, Physiological Form Surveys, Study 1929  Box 26
		Stem Rust Epidemiology in Western Canada 1945  Box 26
		Stem Rust, Oat, New Form from Barberry Area 1932  Box 26
		Stem Rust of Cereals 1940  Box 26
Box 28		Plant Quarantine Problems 1948  Box 28
		General Outlines on Epidemiology, Spore Trap Blueprint 1921  Box 28
		Appearance of Rust in Southeastern States 1921  Box 28
		Observations on Grain Rust of Cereals and Grasses in the Great Plains and Upper Midwest 1921  Box 28
		Chronological Rust Observations, Summaries 1921  Box 28
		Wheat Rust Spread, J.J. Christensen 1922  Box 28
		Plans and Projects 1922  Box 28
		Correspondence and Reports, E.C. Stakman 1927-1940  Box 28
		Epidemiology of Wheat Rust in North America circa 1954 ( 2 folders)  Box 28
		Report of Rust Spread Studies 1922  Box 28
		Summary of Stem Rust Surveys 1921-1928  Box 28
		Report on Rust Survey Work 1921  Box 28
		Reports on Studies of Barberry Sites, Illinois 1921  Box 28
		Primary Report, Epidemiological Work 1922  Box 28
		Report of Rust Survey in Iowa, Wisconsin and Minnesota 1922  Box 28
		Report on Rust Observations and Report on Flying, Oklahoma 1922  Box 28
Box 29		"History of the Occurrence of Stem Rust" excerpts from USDA Monthly Reports 1868-1897  Box 29
		Field Reports from Southern States 1918-1919  Box 29
		Report on Field Observation 1923  Box 29
		Report on Flax Rust, H. Hart undated  Box 29
		Summary Report 1945  Box 29
		Summary of Cooperative Stem Rust Epidemiology Experiments 1953  Box 29
		Correspondence Regarding Publication of "Some Effects of Sodium Arsenate When Used to Kill the Common Barberry" 1924-1925  Box 29
		Correspondence 1935-1940  Box 29
		Correspondence, Rust Investigations 1917-1920  Box 29
		Stem Rust Related Papers, J.J. Christensen 1926  Box 29
		USDA Crop Estimates by Year 1902-1918, 1953-1954  Box 29
		Rust Transmission and Barberry Quarantine 1919-1931  Box 29
		Sodium Arsenate Poisoning 1923  Box 29
		Rust Epidemiology Studies in the States of Illinois, Indiana, Ohio, and Kentucky 1923  Box 29
Box 44		Report on Stem Rust Epidemiology Studies 1939 ( 1 volume)  Box 44
		Report of Rust Epidemiology Studies 1937 ( 1 volume)  Box 44
		Over-Wintering Studies and Related Correspondence   Note The subseries contain materials relating to the theory that spring rust infestations are primarily attributable to rust spores which are able to survive the winter. Materials include field observations and formal reports, studies based on observations by agent and state, maps and correspondence.
Box 14		Overwintering Observations in Oklahoma, Texas and South Dakota 1923  Box 14, Folder 5 View folder contents.
		Monthly Station Reports of Overwintering Studies of Rust 1922  Box 14, Folder 6 View folder contents.
		Summary of Rust Overwintering Studies 1917-1923  Box 14, Folder 7 View folder contents.
		Overwintering Reports, Indiana 1922-1923  Box 14, Folder 8 View folder contents.
		Overwintering of Urediospore in Colorado and Minnesota 1922-1923  Box 14, Folder 9 View folder contents.
		Rust Overwintering Reports 1922  Box 14, Folder 10 View folder contents.
		Overwintering in Montana 1923-1924  Box 14, Folder 14 View folder contents.
		Overwintering in Illinois 1922-1924  Box 14, Folder 15 View folder contents.
		Overwintering in Ohio 1923  Box 14, Folder 17-18 View folder 17 contents. View folder 18 contents.
		Overwintering in Texas 1923-1924  Box 14, Folder 19 View folder contents.
		Overwintering in Missouri 1923  Box 14, Folder 20 View folder contents.
		Overwintering in Tennessee 1922-1923  Box 14, Folder 21 View folder contents.
		Overwintering 1923-1924  Box 14, Folder 22 View folder contents.
		Overwintering in Indiana 1923-1924  Box 14, Folder 23 View folder contents.
		Overwintering 1923-1924  Box 14, Folder 24 View folder contents.
		Overwintering in Colorado 1923-1924  Box 14, Folder 25 View folder contents.
		Overwintering in Iowa 1922-1924  Box 14, Folder 26 View folder contents.
		Overwintering in Minnesota 1922-1924  Box 14, Folder 27-28 View folder 27 contents. View folder 28 contents.
		Plans for 1924 and Report of Progress on Overwintering Studies 1923-1924  Box 14, Folder 29 View folder contents.
		Overwintering in Texas and South Dakota 1924  Box 14, Folder 30 View folder contents.
		Results of Overwintering Studies, by State 1924-1925  Box 14, Folder 32 View folder contents.
		Stem Rust Overwintering Studies in Texas and Rust Survey 1924  Box 14, Folder 34 View folder contents.
		Overwintering in Texas 1922-1924  Box 14, Folder 35 View folder contents.
		Report of Observations and Investigations, J. J. Christensen 1924  Box 14, Folder 36 View folder contents.
		Progress Report of Stem Rust Overwintering Studies, Fall 1924  Box 14, Folder 37 View folder contents.
		North Dakota Stations Observed 1924  Box 14, Folder 38 Note  Includes colored charts of county observations. View folder contents.
		Overwintering in Tennessee, J.O. Andes and E.C. Stakman 1923  Box 14, Folder 44 View folder contents.
		Overwintering in Oklahoma 1924  Box 14, Folder 45 View folder contents.
		Overwintering in North Dakota 1924  Box 14, Folder 46 View folder contents.
		Overwintering in Northern Minnesota 1923-1924  Box 14, Folder 47 View folder contents.
		Overwintering in Kansas 1923-1924  Box 14, Folder 48 View folder contents.
		Overwintering in Bemidji, Minnesota 1922-1924  Box 14, Folder 49 View folder contents.
		Overwintering in South Dakota 1922-1924  Box 14, Folder 50 View folder contents.
		Study of the Overwintering of Uredinia of Black Stem Rust, Manhattan, Kansas 1923-1926  Box 14, Folder 51 View folder contents.
		Overwintering in Nebraska 1922-1924  Box 14, Folder 52 View folder contents.
		Overwintering in Missouri 1923  Box 14, Folder 53 View folder contents.
		Overwintering in Michigan 1923-1925  Box 14, Folder 54 View folder contents.
		Overwintering in Kentucky 1922-1923  Box 14, Folder 55 View folder contents.
		Overwintering in Wisconsin 1922-1923  Box 14, Folder 56 View folder contents.
		Overwintering in New York 1924  Box 14, Folder 58 View folder contents.
		Overwintering in South Dakota 1924  Box 14, Folder 59 View folder contents.
		Overwintering in Kansas, Oklahoma, and Illinois 1926  Box 14, Folder 64 View folder contents.
Box 15		Overwintering and Barberry Infection by State 1928-1929  Box 15, Folder 2 View folder contents.
		Summaries of Fall/Winter Observations 1935-1936  Box 15, Folder 33 View folder contents.
Box 18		Fall Infection, Correspondence 1959  Box 18
		Spring of 1958, Correspondence 1959  Box 18
		Fall of 1958, Correspondence 1959  Box 18
		Fall Infections 1960-1962 ( 3 folders)  Box 18
		Review and Observations on the Stem Rust and Barberry Problem in Washington 1962  Box 18
Box 19		Epidemiology, Overwintering 1939-1939  Box 19
		Epidemiology, Fall and Winter Infections 1940-1941  Box 19
Box 24		Annual Progress Report, Cooperative Cereal Rust Investigations in Minnesota 1923  Box 24
Box 29		Overstemming and Overwintering in Texas 1921-1922  Box 29
		Overwintering and Other Phases of the Rust Problem in the South 1917  Box 29
		Overwintering and Rust Survey in Southern Alabama 1919 (2 folders)  Box 29
		Overwintering Report, South, including Tennessee, Alabama, Mississippi 1919  Box 29
		Overwintered Studies, Spread of Rust from Barberries, J.J. Christensen 1922-1923  Box 29
		Spore Studies   Note Materials in the subseries include data legers, tabulated forms, reports, photographs and correspondence.
Box 16-17		"Microscopic Spore Counts" 1944-1945, 1947-1950 (7 folders)  Box 16-17
Box 28		Spore Traps on Aero planes at Different Altitudes 1921  Box 28
Box 31-32		Spore Trapping 1937, 1940-941, 1943 (11 folders)  Box 31-32
Box 32		Spore Correspondence and Count Guidelines 1946  Box 32
Box 33		Spore Trapping 1951  Box 33
Box 31		Slide Exposures 1936, 1938-1943 (15 folders)  Box 31
Box 32		Slide Exposures 1932-1934 ( 6 folders )  Box 32
		Slide Trapping 1935  Box 32
		Slide Reports by RUC 1938-1958  Box 32
		Slide Exposures 1950, 1953-1961 ( 15 folders)  Box 32
Box 33		Slide Exposures 1944, 1951-1952 (2 folders)  Box 33
		Slide Trapping 1952  Box 33
		Rust Race Surveys 1915-1947 ( 17 folders)  Box 33
		Miscellaneous Stem Rust Publications   Note Materials in the subseries include popular and scholarly articles about the science of stem rust spread.
Box 18		"Adult Plant Reaction of Certain Varieties of Durum Wheat to Stem Rust Races," 1956  Box 18
Box 21		International Rust Conference (Mexico) Paper Abstracts 1956  Box 21
		"Stem Rust Control in Iowa," 1935  Box 21
		"Source of Black Stem Rust 'Puccinia Graminis' in Iowa," 1934  Box 21
Box 22		Publications of E.C. Stakman, Bibliography undated  Box 22
		"Travels in New England and New York, 1796 and 1797" 1823  Box 22 Note One of the first recorded sightings of cereal rust.
Box 24		"Relation of Common Barberry to Black Stem Rust" undated  Box 24
		Rust Prevention Association, Proceedings of Annual Meetings 1922-1928 ( 6 volumes )  Box 24
Box 26		"Stem Rust Epidemic" 1953  Box 26
Box 28		"Old World Species of Genus Mahonia," undated  Box 28
		Plant Name and Spelling Standardization 1940-1945  Box 28
		"A Study of the Relation of Berberis Canadensis Mill to Stem Rust in Virginia, Matheny, Gallis" 1939  Box 28
		Annual Report, Office of Horticulture and Office of Cereal Corps and Diseases; Bureau of Plant Industry, USDA 1926  Box 28 Note  Includes photographs.
Box 29		"Further Contributions to Our Knowledge of the Chinese Species of Genus Berberis" 1919  Box 29 Note Translated from the Mandarin.
		Catalogue of American Fence and Steel Gates, American Steel and Wire Company 1923  Box 29 Note  Contains essay on fencing and rust spread.
		"First Appearance of Stem Rust in the United States and the Probable Source of the Inoculum," 1922  Box 29
		"Migration of Stem Rust" undated  Box 29
Box 50		"Black Stem Rust: The Story of a Disease of Small Grains and the Common Barberry from which it Spreads" undated  Box 50 Note  Color poster issued by USDA's Barberry Eradication office showing the rust spread cycle and examples of diseased and healthy wheat grains.
		Rust Mutation Studies and Rust Nursery Observations   Note Materials in this series focus on the controlled study of changes in stem rust, much of which took place at the cereal Rust Laboratory at the University of Minnesota, and includes correspondence, reports, surveys, summaries, maps, conference papers and photographs. Note that a standard term for describing different types of rust is “rust races.”
Box 12		Black Stem Rust Investigations, Progress Report 1920  Box 12, Folder 11 View folder contents.
		Annual Report, Stem Rust, Office of Cereal Investigation, USDA and Minnesota Agricultural Experiment Station 1925-1928  Box 12, Folder 15-18 View folder 15 contents. View folder 16 contents. View folder 17 contents. View folder 18 contents.
Box 14		Rust Nursery Planting Plan 1924  Box 14, Folder 31 View folder contents.
		Annual Progress Report, 1923  Box 14, Folder 39 View folder contents.
		Progress Report of Stem Rust Investigations, 1923  Box 14, Folder 40 View folder contents.
		Investigations of the Resistance of Berberis Species to Puccinia graminis, undated  Box 14, Folder 41 View folder contents.
		Conditions Affecting Rust Infections; Effect of Light 1923  Box 14, Folder 42 View folder contents.
		Biologic Specialization of the Stem Rust of Cereals Puccinia graminis tritici 1924  Box 14, Folder 57 View folder contents.
		"A Preliminary Report of Progress in the Breeding of Spring Wheat for Resistance to Stem Rust," 1926  Box 14, Folder 65 View folder contents.
		Rust Observations 1928  Box 14, Folder 70 View folder contents.
		Stem Rust on Grains and Grasses, Data Collection 1928  Box 14, Folder 71 View folder contents.
		Report of Observations Made on Stem Rust of Grains and Grasses 1928  Box 14, Folder 75 View folder contents.
Box 15		Annual Report "Cooperative Investigation of Black Stem Rust and Flax Diseases" 1929  Box 15, Folder 4 View folder contents.
		Progress Report of Stem Rust Investigation 1934  Box 15, Folder 21 View folder contents.
Box 16		Physiologic Races of Rust, Correspondence and Reports, Plant Disease Reporter 1939  Box 16
		Annual Report of Physiologic Race Survey of Puccinia graminis 1946  Box 16
		"Rust Observations in Northern Mexico" and "Report of Physiological Races of Puccinia graminis" 1948  Box 16
		Special Uniform Rust Nurseries in New York and Pennsylvania 1948  Box 16
Box 17		Race 15B, new Wheat Rust Infestation, Articles and Related Correspondence 1950-1951  Box 17
		Miscellaneous Summaries, Press Releases, Abstracts on Race 15B 1952-1953  Box 17
Box 18		Rust on Resistant Wheat 1959  Box 18 Note  Includes letter from N. E. Borlaug to J. J. Christensen.
		Report on Physiologic Races 1959  Box 18
Box 19		Barberry Varietal Susceptibility to Stem Rust, Correspondence 1969-1982  Box 19
		Current Reports on Physiological Races and Slides 1963  Box 19
Box 20		Rust Races Survey 1970  Box 20
		Rust Race Observations 1920-1930  Box 20
		Rust Race Summary 1940-1978 ( 4 folders)  Box 20
Box 22		Annual Report, "Nursery Sanitation, Chemical Eradication and Ecological Phases of the Stem Rust Control Program" 1945-1955 ( 3 folders)  Box 22
Box 23		Summary report of Stem Rust Slide Exposures, Cereal Disease Investigations 1925  Box 23
Box 24		Rust Reaction in Grasses 1951  Box 24
		"Physiological Race Results in the U.S. in 1943," Stakman and Loegering 1943  Box 24
		Oat Varieties 1950  Box 24
		Crown Rust 1945-1951  Box 24
Box 25		Rust Lab, Physiological Races of Puccinia Graminis in the U.S., 1928-1958  Box 25
Box 26		"Relation of Barberry to the Origin and Persistence of Physiologic Forms of Puccinia Graminis" 1934  Box 26
		"Relative Importance of Barberry and Other Sources of Inoculums as Factors in the Development of the Stem Rust Problem in the Palouse," circa 1944  Box 26
		"Testing Barberries for Resistance to Stem Rust," 1955  Box 26
		"Susceptibility and Resistance of Berberis and Related Genera to Puccinia Graminis," 1932  Box 26
		Cereal Crops Rusts 1935  Box 26
		Cereal Rust of Small Grains 1919  Box 26
		Cereals, Variation in Rusts of 1953  Box 26
		Puccinia Graminis, Biological Forms on Varieties of Avena SPP 1923  Box 26
		Puccinia Graminis, Color Mutation 1964  Box 26
		Puccinia Graminis, Effect of Temperature and Light on Development of the Uredial Stage 1935  Box 26
		Puccinia Graminis, Factors Affecting Aecial Stage 1932  Box 26
		Puccinia Graminis, Origin Forms through Mutation 1930  Box 26
		Puccinia Graminis Tritici, Determination of Biological Forms 1922  Box 26
		Puccinia Graminis Tritici, Differential Reactions of Strains Wheat 1926  Box 26
		Puccinia Graminis Tritici, Effect of Light and Temperature, Hope Wheat 1935  Box 26
		Race 15B of Wheat Stem Rust, What It Is undated  Box 26
		Stem and Leaf Rusts, Wheat Varieties Resistant to the Hessian Fly and Their Reactions 1944  Box 26
		Cereal Rust, Cooperative Uniform Observation Nurseries 1957  Box 26
		Stem Rust of Wheat, Effect of Fertilization Development 1924  Box 26
		Wheat Seedlings, Reaction to New Rust Isolates 1961  Box 26
Box 27		Wheat Stem Rust Conference, University Farm, St. Paul, Minnesota 1950  Box 27
Box 28		Progress Report 1955  Box 28 Note  Summary of field observations and data recorded in 1954 of wheat stem rust.
Box 29		Infection and Urediospore Germination, Texas 1921-1922  Box 29
		Annual Report on Black Stem Rust Investigations 1920  Box 29
Box 34		Stem Rust Race Surveys 1943-1958 ( 16 volumes)  Box 34
		Rust Survey 1928-1938  Box 34
Box 35		Race Surveys 1948-1978 ( 28 folders)  Box 35
		Races in Inland Emp., E. C. Stakman and Ham, December 18, 1958 Box 35
		"History and Distribution of Uredial Stage of Physiologic Races of Puccinia Graminis Tritici in the United States" 1915-1971 ( 2 folders)  Box 35
Box 36		Race Surveys 1954-1958 ( 6 folders )  Box 36
		Seed Purification-Wheat Headline Studies 1953-1963  Box 36
		Comparative data on rust of Winter Wheat in Rumania 1965  Box 36
		"Studies on the Germination of the Aeciospores of Puccinia Graminis Scales" 1958  Box 36
		Pathogen site of Puccinia Graminis Race 59 1929-1944  Box 36
		Oat Rust Studies-Tables and Report 1939-1960  Box 36
		"Diploidisation and Hybridization" 1934-1940  Box 36
		New Races-Wheat, Correspondence and Reports 1947-1968  Box 36
		"Project: Identification of Physiologic Races of Wheat Rusts and Studying the Genetics of Rust and Smut Resistance in Wheat and Net Blotch Resist in Barley, etc.," 1963-1964  Box 36
		Barberry Testing and Shipping 1975  Box 36
		Barberry Herbarium 1973  Box 36
		Report, Ministry of Agriculture, Republic of Argentina 1957  Box 36
		Barberry Taxonomy 1966  Box 36
		"Barberry Testing," 1966-1974  Box 36
		"Barberry Testing," 1930-1966  Box 36
		Barberries, Berberis, and Mahonia not in Rust Lab Collection 1941-1969  Box 36
		Stem Rust Races on Barley Varieties 1950-1951  Box 36
		"Relative Susceptibility of Wheat Varieties to Stem Rust, Bunt and Flag Smut," 1954  Box 36
		Memorandum regarding Taxonomy of physiologic Races of Puccinia Graminis vor tritici 1957  Box 36
		Key for Puccinia Graminis Tritici on Barley 1928  Box 36
		"Physiologic Races of Puccinia Graminis in the U.S." 1941-1960 (2 folders)  Box 36
		History and Distribution of Uredial Stage of Physiologic Races of Puccinia Graminis Avenge in the United States 1960-1980  Box 36
		Case Histories of WSR Races 1-208, 1915-1944  Box 36
		Races from Barberry 1920-1961  Box 36
		Barberry Races 7-12, 1933-1962  Box 36
		Ratio of Races to Collections and to Isolates 1934-1962  Box 36
		Percentages of total isolates of Puccinia graminis tritici races 1918-1973  Box 36
		Rust Service Bureau-Biological Specialization of Puccinia Graminis 1915-1920 ( 2 folders)  Box 36
		Observations on Stem Rust Epidemiology in Mexico 1921-1941  Box 36
		Avenae Tables 1926-1954  Box 36
		Puccinia Graminis Avenae Tables 1939-1958  Box 36
		Cardinal Facts Regarding Stem Rust 1931  Box 36
		World Distribution of Wheat Steam Races 1955-1966 (2 folders)  Box 36
Box 37		Race Surveys 1970-1974 ( 5 volumes)  Box 37
Box 38		Tests on the Susceptibility of Berberis Mahonia 1915-1937  Box 38
		Susceptibility of Berberis Mahonia 1906-1966 ( 2 folders)  Box 38
		Barberry History Manuscript 1915  Box 38
		Black Stem Rust 1923-1967  Box 38
		Progress of the Barberry Eradication Campaign 1918-1936  Box 38
		Barberry Eradication Conference, Harrisburg, PA 1974  Box 38
		Barberries, Berberis, and Mahonia in Rust Lab Collection and/or testing program 1960-1973  Box 38
		Pennsylvania State Barberry Nursery 1971-1973  Box 38
		Barberry Eradication 1963-1974  Box 38
		Barberry Correspondence 1944-1969  Box 38
		First appearance of rust away from and near barberries 1921-1922  Box 38 Note  Includes maps.
		Berberis Mahonia Testing 1958-1966  Box 38
		Races-State Sheets 1958  Box 38
		Survey and Eradication- Section I 1945  Box 38
		Rust Studies and Observations- Section II 1945-1946  Box 38
		Safety and Health-Section IV 1945-1946  Box 38
		Fiscal Information-Section V 1945, 1971  Box 38 Note  Includes map from 1971.
		Ecology-Section VI 1945  Box 38
		Miscellaneous-Section VII 1945, 1971  Box 38 Note  Includes map from 1971.
		Status Maps-All Programs 1941-1969  Box 38
		Black Stem Rust Information Posters undated  Box 38
		Map and Cartoon 1918-1921  Box 38
		Mexican Cooperative Wheat Testing 1941-1950  Box 38
		Uniform Rust Nursery Reports 1925-1969 ( 11 folders)  Box 38
		Uniform Wheat Mildew Reports 1950-1959  Box 38
		Uniform Wheat Reports 1970  Box 38
		Uniform Wheat and Oat Reports 1971-1973  Box 38
Box 40		Workshop: N. Plains, NA-LR, ARS 1986  Box 40
		North American Leaf Rust, transcript 1982  Box 40
		Uniform Wheat Rust Reports 1974-1976  Box 40
		Uniform Wheat and Oats Reports 1977-1978  Box 40
		Uniform Wheat and Oat Rust Reports 1978-1979  Box 40
		International Rust Nursery (IRN) Reports 1972-1980 ( 3 volumes)  Box 40
Box 41		Proceedings of the Second Cereal Rust Conference 1924  Box 41
		International Rust Nursery (IRN) Reports 1953-1956 ( 5 folders)  Box 41
		Rust Nursery Reports 1956-1957  Box 41
		International Barley Disease Nursery Reports 1957  Box 41
		Rust in Wheat and Oats Test Data 1957-1958  Box 41
		International Disease Nursery Reports 1958-1961  Box 41
Box 41-42		International Rust Nursery (IRN) Reports 1962-1965 ( 8 folders)  Box 41-42
Box 42		International Disease Nursery Reports and Summaries 1966-1967 ( 4 folders)  Box 42
		International Rust Nursery (IRN) Reports and Summary 1968-1969 ( 4 folders)  Box 42
Box 42-43		International Rust Nursery (IRN) Reports 1970-1972 ( 5 folders and 1 volume)  Box 42-43
Box 43		North American Leaf Rust 1980-1982  Box 43
		North American Leaf Rust Committee 1977-1979  Box 43
		Leaf Rust Workers 1976  Box 43
		Leaf Rust Workers and Meetings 1971-1973  Box 43
		North American Leaf Rust Workers Committee Meeting 1967-1970  Box 43
		North American Leaf Rust 1960-1966  Box 43
		Elite Entries, Uniform and International Nurseries 1925-1982 ( 1 volume)  Box 43
		Uniform Rust Nursery (URN)-International Rust Nursery (IRN) Reports 1986 ( 2 volume)  Box 43
Box 43-44		International Rust Nursery (IRN) Reports 1981-1986 (7 volume)  Box 43-44
Box 44		Production and Stem Rust Losses undated ( 1 volume)  Box 44
		Physiologic Races of Puccinia Graminis in the United States, Annual Summaries 1935-1965 ( 2 folders)  Box 44
		Report on Physiologic Race Survey of Puccinia graminis tritici 1938 ( 1 volume)  Box 44
		Annual Report on Physiologic Race Survey in the United States 1947, 1948 ( 2 volumes)  Box 44
		Annual Report of Physiologic Race Survey of Puccinia Graminis 1939-1949 ( 11 volumes)  Box 44
		Race Reports 1950 ( 1 volume)  Box 44
		Report on Physiologic Race Surveys 1949 ( 1 volume)  Box 44
Box 45		Rust Observations 1927-1954 ( 2 volumes)  Box 45
		Form Letters, Crop Reports 1956-1957 ( 1 volume)  Box 45
		Rust Prevention Association 1955 ( 1 volume)  Box 45 Note  Correspondence, reports.
		Rust Observations 1954-1956 ( 1 volume)  Box 45
		Crop Reports, Form Letters 1937-1946, 1952-1955 ( 2 volumes)  Box 45
Box 46		Cereal Rust Bulletins 1993-2007 ( 1 volume and 1 folder)  Box 46
		Rust Observations 1953-1958 ( 12 folders)  Box 46
		Cereal Rusts in Canada, 1925-1966 ( 2 folders)  Box 46
		Stem Rust Losses
Box 15		Economic Effect of the 1935 Rust Epidemic, Speech by Don Fletcher at State Leaders Meeting 1936  Box 15, Folder 30 View folder contents.
Box 19		Loss Due to Stem Rust, Miscellaneous Reports 1918-1947  Box 19
		Stem Rust Loss Estimates by Year and Region circa 1935-1962  Box 19
		Rust Losses 1976  Box 19
		Crop Yields and Stem Rust Losses, Preliminary and Revised Reports 1961-1968  Box 19
		Stem Rust, Crop Production and Disease Loss Estimates for Barley, Oats and Wheat 1915-1967  Box 19
		Stem Rust, Laura Hamilton 1962  Box 19
		Yields and Stem Rust Losses, Co-Relation Studies and Charts 1915-1962  Box 19
		Method of Estimating Rust Losses in Average Percentages and Business, Laura Hamilton 1936-1955  Box 19
		Wheat Losses, Mapped 1923  Box 19
Box 19-20		Stem Rust Loss Estimates, Correspondence and Reports 1929-1942 (8 folders)  Box 19-20
Box 20		Stem Rust Loss Estimate, by State 1942-1963 ( 22 folders)  Box 20
		Stem Rust Loss Estimates and Correspondence 1969-1970  Box 20
		Preliminary Estimated Rust Loss Data 1968-1974  Box 20
		Steam and Leaf Rust Growth Field Data 1971  Box 20
		Rust Reports Correspondence 1973  Box 20
		Rust-Related Crop Loss Estimates 1971-1974 ( 3 folders)  Box 20
		Rust-Related Losses of Wheat, Barley, Oats and Rye by State and Year 1918-1973  Box 20
		Index for Rust Epidemics 1921-1962  Box 20
Box 21		USDA Bureau of Plant Industries, Rust Loss Tables 1929-1965  Box 21
		Stem Rust Losses 1915-1928  Box 21
		Stem Rust Losses in the United States, Bureau of Plant Industry, Division of Cereal Crops and Diseases, USDA 1909-1962  Box 21
		Crop production and Disease Loss Estimate Figures, by Crop and State 1935-1966  Box 21
Box 24		Estimating Stem Rust Loss 1945  Box 24
		Stem Rust Loss Data, Preliminary, for all Reporting States 1928-1939  Box 24
		Stem Rust Losses in Minnesota 1944  Box 24
		Stem Rust Losses and Rust Spreads Reports 1941  Box 24
Box 29		Estimated Percent Loss from Wheat Stem Rust 1921  Box 29
Box 44		Preliminary Rust Losses 1969 ( 1 volume)  Box 44
		Photographs and Slides   Note The series contains negatives and photographs taken in the field during Barberry eradication campaigns, laboratory photographs of seed, fungus and spores, and publicity photos primarily focusing on public education about the link between barberry bushes and rust spread. Many of the photographs were in numbered files; no key exists.
Box 22		Negatives and Photos 1921-1922  Box 22
		Negative, Minnesota Map Showing Properties Having Common Barberry undated  Box 22
		Negative, Minnesota, Barberry Leaf Showing Cluster Cups undated  Box 22
		Washington, "Plump Healthy Wheat Compared with Rust-Shriveled Wheat" undated  Box 22 Note  300 Kernels in each segment
		Negative, Washington, Indians State Fair Demonstration 1933  Box 22
		Negative, Washington, "Common Barberries are Not Native to America" undated  Box 22
		Negative, Washington, "Common Barb berries Start Stem Rust Every Spring…" undated  Box 22
		Negative, Bridgewater Township, Minnesota, Barberry in Pasture undated  Box 22
		Barberry Stem Rust Exhibit, Agricultural Exhibits Service, USDA 1949  Box 22
		Miscellaneous Subjects undated  Box 22 Note  Mostly taken in Pennsylvania.
		Minnesota "Learn to Know the Rust Spreading Barberry," Negative and Postcards 1941  Box 22
		Minnesota, "Barberry Crews Combing Hillside" WPA Photograph 1941  Box 22 Note  Filmore County.
		Minnesota 1942-1946 ( 5 folders)  Box 22
		Pennsylvania, Status Map 1946  Box 22
		Photographs and Status Maps 1947  Box 22 Note  Includes identified field personnel.
		Minnesota, Status Maps 1948-1950 ( 3 folders)  Box 22
		Minnesota and North Dakota, Status Maps 1951  Box 22
		Minnesota, Status Maps 1952-1955 ( 4 folders)  Box 22
		Minnesota and North Dakota, Status Maps 1956  Box 22
		Minnesota, Status Maps 1958  Box 22
		Minnesota 1959-1961 ( 2 folders)  Box 22
		Minnesota, Red River Valley Winter Information Shows 1962, 1968  Box 22
		Minnesota and U.S. Northern States, Status Map 1961  Box 22
Box 27		Barberry Stem, Colored Plate undated  Box 27
		Life Cycle of Black Stem Rust, Color Plate undated  Box 27
		"Teaching Control of Black Stem Rust of Small Grains in Vocational Agriculture Classes" USDA 1939  Box 27
		Stem Rust, Color Plate, USDA undated  Box 27
		Spread of Black Stem Rust from Barberry Hedge near Northfield, Minnesota 1922  Box 27
		Stem Rust, Photographs 1923  Box 27
		Stem Rust Eradication Materials for the Public 1975  Box 27
		Barberry Demonstrations at County and State Fairs 1919-1926  Box 27
		Barberry Photos, Illinois Eradication Reports 1930  Box 27
		Barberry Eradication Public Education Materials, Minnesota and U.S. undated  Box 27
		Spore Enlargements undated  Box 27
		Color Negatives of Barberry Plants in Fields undated  Box 27
		Eradication Methods, Color Negatives undated  Box 27
		Color Negatives of Plants and Field Surveys in Progress circa 1950  Box 27
		Barberry Eradication Reports, Barberry "Bee," Redwing MN, 1924  Box 27
		"Barberry Sprouts from Bushes Out at Ground Line," Dane County, WI, 1921  Box 27
		"Life Story of Black Stem Rust Showing Pores of Each Stage Enlarged" undated  Box 27
		Color Plates of Stages of Stem Rust Development undated  Box 27
		Pulling Barberries with Tractors undated  Box 27
		Japanese Barberry on Left, Common Barberry on Right 1921  Box 27 Note  From drawing by G. D. George.
		Seedling Barberries Under Limestone Ledge, Dane County, WI, undated  Box 27
		Root System of Escaped Barberry, Dane County, WI, undated  Box 27
		"Wheat Field Total Loss From Stem Rust Spread From 1 Barberry Bush," Alert, IN, 1922  Box 27
		"Black Stem Rust on Durum Wheat in Field of Succotash West of and Adjoining Pasture Near Pine Island" 1922  Box 27
		"Escaped Barberries Sprouting After Cutting Three Times," Marshall, WI, 1922  Box 27
		"Barberry Bee," Mingo, OH, 1922  Box 27
		"Sprouts from Barberries Dug in the Sand Dunes," Near Saugatuck, MI, 1922  Box 27
		"Same Hedge in Cass County Shown in Number 1," Weeping Water, NE, 1922  Box 27
		"General View of Barberry-Filled Pasture" 1923  Box 27 Note  Merrill Richardson's place near Charlevoix, Michigan.
		"Treating Common Barberry Bushes with Sodium Arsenate," Near Joliet, IL, 1923  Box 27
		"Close Up of Rusted Barberry Leaves" 1923  Box 27 Note  Cotter's place near Charlevoix, Michigan.
		Barberry Hedge on the North East Quarter of Section 12, Fall River, SD, 1923  Box 27
		"Treated Barberries in a Pasture, Killed with Salt," Fond du Lac, WI, 1923  Box 27
		"Representative Newspaper Clippings, Barberry Eradication Campaign" 1924  Box 27
		"Plump Wheat Kernels and Kernels Shriveled by Stem Rust" undated  Box 27
		"Drawing of Stem Rust Showing Successive Enlargement of Black Spores with Their Germination and Production of Sporidia" undated  Box 27
		"Rusted Common Barberry, Aecial Stage," Madison, WI, 1925  Box 27
		Typical Japanese Barberry Bush on a Lawn, Painesville, OH, 1926  Box 27
		"Drawing Showing Successive Enlargements of the Cluster Cup State of Stem Rust on Barberry Leaves" 1926  Box 27
		"Drawing Showing Successive Enlargement of the Red or Summer Stage of Stem Rust on Grain Stem" undated  Box 27
		"Two Kinds of Wheat Kernels" circa 1925  Box 27
		"View of Purple Barberry Hedges," Malcolm, IA, 1927  Box 27
		"Several Escaped Barberries Growing on the Outskirts of a Dense Woods," Near Auburn Corners, OH, 1926  Box 27
		"Cultivated and Escaped Barberries," Near Auburn Corners, OH, 1926  Box 27
		"The Life Story of Black Stem Rust" and "Plates 3 and 4 from Yearbook Separates" 1924  Box 27
		"Single Japanese Barberry," La Salle, IL, 1927  Box 27
		"Seedlings Under Dead Barberry Bushes," Galena, IL, 1927  Box 27
		"Common Barberry Found Near Wheat Field," La Salle, IL, 1927  Box 27
		Various Barberry Eradication Personnel Photos circa 1926-1929  Box 27
		"Little Barberry…," Moody County, SD, undated  Box 27
		"Group of Escaped Bushes Growing Along Side Buffalo River," Moland Township, MN, 1932  Box 27
		"Federal Scouts Killing Common Barberries with Kerosene…," 1928  Box 27
		"Microphotograph, Cross-section of Grain Stem Showing Black Spores" 1928  Box 27
		"Microphotograph, Cross-section of 2 Barberry Pustules Containing Black Spores" 1928  Box 27
Box 28		"Microphotograph, Cross-section of a Barberry Leaf Through a Number of Cluster Cups" undated  Box 28
		"Treating a Common Barberry with Salt" 1928  Box 28
		"Enlarged Common Barberry Leaf Showing Cluster Cup" 1928  Box 28
		"Farmer Inspecting Common Barberry," Near Tilden, IL, circa 1930  Box 28
		"Identifying Characteristics Common and Japanese Barberries" 1930  Box 28
		"Composite Picture Showing a Rust-spreading Bush…" 1930  Box 28
		National Rust Busters Club Bronze Medal… 1930  Box 28
		"Life Cycle of Black Stem Rust of Grain" undated  Box 28
		"Composite Pictures Made for a Colored Strip of Enlargements" 1933  Box 28
		"Hillside Spread on Old Farm," Sparta, WI, 1933  Box 28
		"Typical Escaped Common Barberry in Fence Row Adjacent to Grain Field," Fond du Lac, WI, 1933  Box 28
		"Treating Medium-Sized Barberry Bush with Salt," Lacon, IL, 1933  Box 28
		"Escaped Barberries Growing with Native Red Cedar in Open Ravine," Lacon, IL, 1933  Box 28
		"Escaped Common Barberries Growing in Old Rail Fence," Rising Sun area, OH, 1933  Box 28
		"Escaped Common Barberry Adjacent to an Old Homestead," Geauga County, OH, 1933  Box 28
		"Transporting Salt Directly to Farm Property," Tootstown, OH, 1933  Box 28
		"Plump Healthy Wheat Compared with Rust-Shriveled Wheat," 1934  Box 28
		"Australian Proclamation, Plant Disease Act" 1924  Box 28
		Barberries: Edge of the Wheatfield 1936  Box 28 Note  C. Raines Farm, Rock Camp, Monroe County, West Virginia.
		"Salt-Killed Native Barberries in Fence, Edge of Wheat Field" 1936  Box 28 Note  Burgess Property, Brush Ridge Mountain, West Virginia.
		"Barberry at the Edge of Grain Field," Near State College, PA, 1936  Box 28
		"Barberry Escapes in Fence Row," Fortier Township, MN, 1936  Box 28
		"Large 35 Year Old Hedge of Barberries," Fortier Township, MN, 1936  Box 28
		"Barberry Eradication," Rio Grande County, CO, 1936  Box 28
		"Typical Bush," Watersweet, PA, 1937  Box 28
		"Grain Field Completely Surrounded by Barberries," Eric County, PA, 1937  Box 28
		"Escaped Area of Barberry Bushes," Port Byron, IL, 1938  Box 28
		"Relief Labor Mixing Salt Brine Preparatory to Barberry Eradication," Rio Grande County, CO, 1937  Box 28
		"Oats Heavily Infested with Stem Rust," Centre County, PA, undated  Box 28
		"Native Barberry" undated  Box 28
		"Composite of BE 1737 and 2765, Showing Common Barberry Along Fence Adjacent to Oat Field" 1941  Box 28
		Miscellaneous Photographs from Sequences, Primarily Field Photos undated  Box 28
		Barberry Eradication undated  Box 28
		Specimen Photos for Inspection Manual undated ( 2 folders)  Box 28
		Escaped and Cultivated Common Barberry Bushes 1922-1929  Box 28
		Eradication Activities 1919-1927  Box 28
		Infection Wheat Stems and Berries undated  Box 28
		Infected Barberry Leaves 1922-1923  Box 28
Box 29		Barberry Eradication Activities, Various Locations 1960-1970  Box 29
		Barberry Eradication Activities, Kansas and South Dakota 1963  Box 29
		Barberry Eradication Activities, Kansas 1961  Box 29
		Barberry Eradication Activities, Nebraska 1961  Box 29
		Barberry Eradication Activities, Miscellaneous 1936  Box 29
		Barberry Eradication Activities, Nebraska 1935  Box 29
		Barberry Eradication Activities, Minnesota 1933-1945 ( 13 folders)  Box 29
		Barberry Eradication Activates Miscellaneous 1933  Box 29
		Barberry Eradication Activities, Ohio 1933  Box 29
		Barberry Eradication Activities, Minnesota 1932  Box 29
		Barberry Eradication Activities, Miscellaneous 1932  Box 29
		Barberry Eradication Activities, Minnesota 1928-1931 ( 4 folders)  Box 29
		Barberry Eradication Activities, Miscellaneous 1928  Box 29
		Barberry Eradication Activities, Illinois 1927  Box 29
		Barberry Eradication Activities, Iowa 1927  Box 29
		Barberry Eradication Activities, Michigan 1927  Box 29
Box 30		Barberry Eradication Activities, Minnesota 1927  Box 30
		Barberry Eradication Activities, Miscellaneous 1927  Box 30
		Barberry Eradication Activities, Ohio 1927  Box 30
		Barberry Eradication Activities, Wisconsin 1927  Box 30
		Barberry Eradication Activities, Illinois 1926  Box 30
		Barberry Eradication Activities, Minnesota 1926  Box 30
		Barberry Eradication Activities, Miscellaneous 1926  Box 30
		Barberry Eradication Activities, Ohio 1926  Box 30
		Barberry Eradication Activities, Illinois 1925  Box 30
		Barberry Eradication Activities, Minnesota 1925  Box 30
		Barberry Eradication Activities, Miscellaneous 1925  Box 30
		Barberry Eradication Activities, North Dakota 1925  Box 30
		Barberry Eradication Activities, Illinois 1924  Box 30
		Barberry Eradication Activities, Indiana 1924  Box 30
		Barberry Eradication Activities, Minnesota 1924  Box 30
		Barberry Eradication Activities, Miscellaneous 1924  Box 30
		Barberry Eradication Activities, Illinois 1923  Box 30
		Barberry Eradication Activities, Michigan 1923  Box 30
		Barberry Eradication Activities, Minnesota 1923  Box 30
		Barberry Eradication Activities, Miscellaneous 1923  Box 30
		Barberry Eradication Activities, Wisconsin 1923  Box 30
		Barberry Eradication Activities, Illinois 1922  Box 30
		Barberry Eradication Activities, Iowa 1922  Box 30
		Barberry Eradication Activities, Minnesota 1922 ( 2 folders)  Box 30
		Barberry Eradication Activities, Miscellaneous 1922  Box 30
		Barberry Eradication Activities, Michigan 1921  Box 30
		Barberry Eradication Activities, Minnesota 1921  Box 30
		Barberry Eradication Activities, Miscellaneous 1921  Box 30
		Barberry Eradication Activities, Wisconsin 1921  Box 30
Box 31		Barberry Eradication Activities, Minnesota 1918-1920 (3 folders)  Box 31
		Barberry Eradication Activities, Miscellaneous undated  Box 31
Box 36		Barberry Pictures undated  Box 36
		Greenhouse equipment and technique pictures undated  Box 36
		Stem Rust Pictures undated  Box 36
Box 39		Barberry Eradication undated  Box 39
		Barberry Eradication undated  Box 39
Box 39		Additional Barberry Slides, with correspondence circa 1984 ( 34 boxes)  Box 39
		Barberry Slides 1940s-1950s ( 17 slide sets)  Box 39 Note  Contains slides featuring barberry infection, eradication tests, eradicating the field, results of eradication, and Japanese barberry.
Box 39		Barberry Slides 1940s-1950s ( 12 slide sets)  Box 39 Note  Contains slides featuring harvesting oats, tests on stem rust, and life cycles.
Box 46		Barberry Slides 1940s-1950s ( 140 slides)  Box 46 Note  Contains slides featuring private homes, rust in other grains, eradication of Amate, and other diseases on pests in plants and grains.