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Creator
- Oregon State University. Agricultural Experiment Station 21
Topic
- Oregon Agricultural College. Experiment Station 21
- Plants, Cultivated--Field experiments 12
- Sulfur fertilizers 12
- Oregon State Agricultural College. Agricultural Experiment Station 6
- Hens 2
- Knowlton, Frank L. (Frank Lester), 1894-1940 2
- Poultry 2
- Universities and colleges--Faculty 2
- Irrigation 1
- Nitrogen fertilizers 1
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Language
- English 21
Format
- image/tiff 21