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Topic
- Pears--Varieties 43
- Agricultural experiment stations 23
- World War, 1939-1945 23
- Oregon Agricultural College. Experiment Station 21
- Plants, Cultivated--Field experiments 17
- Sulfur fertilizers 13
- Agriculture 10
- Alien plants 6
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Region
- Oregon >> United States 44
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Language
- English 153
Local Collection Name
- Agricultural Experiment Station Photographic Collection, ca. 1900-1988 (P 029) 153
Format
- image/tiff 153
Collection
- OSU Special Collections & Archives Research Center 153
- Historical Images of Oregon State University 34
Genus
- Pyrus 43
- Thomsonaria 1