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Cutting vetch, June 4, 1919
Oregon Experiment Station
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Threshing vetch
Oregon Experiment Station
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Dr. J. R. Cowan examining nine days regrowth on culture 237, January 11, 1955
Dr. J. R. Cowan examining nine days regrowth on culture 237. Picture taken January 11, 1955. Plant was clipped on January 2.
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Tall fescue, circa 1955
Showing bagging and tagging procedures by J. R. Cowan in controlled breeding experiment.
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Harry Schoth standing on the original plot of alta tall fescue, 1950
Harry Schoth standing on the original plot of alta tall fescue which he was responsible for originating. This photo was taken on the West Farm, Oregon State College, Corvallis. This is where the Federal Forest...
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Field scales
Oregon Experiment Station, 1923
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Farm Crops faculty with visiting Russian scientists in Klamath Falls at Tulana Farms office, 1961
Front row left to right: Eugene Varenitsa?; Dick Henzel; Irene Trofemova?; Ivan Uchenko; Back row left to right: J. R. Cowan; John Martin; Alex Beck.
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Farm Crops faculty group portrait, circa 1960
Top row: Quentin Zielinski, Bob Storm, Tex Fraser, Huge Kruger, Lyle Calvin, and Wilson Foote; Bottom row: Ernst Doernfeldt, Jerry Li, J. R. Cowan, Paul Bernier, and Ralph Bogart.
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Farm Crops faculty group portrait, circa 1960
Top row: Quentin Zielinski, Bob Storm, Tex Fraser, Huge Kruger, Lyle Calvin, and Wilson Foote; Bottom row: Ernst Doernfeldt, Jerry Li, J. R. Cowan, Paul Bernier, and Ralph Bogart.
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Twin flat fan spray and single flat fan spray illustration, circa 1955
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