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- Portraits 266
- Universities and colleges--Faculty 257
- Oregon State College. Federal Cooperative Extension Service 60
- Oregon Agricultural College. Experiment Station 51
- Pears--Varieties 43
- Agriculture 41
- English 37
- Academic libraries 34
- Plants, Cultivated--Field experiments 34
- Library employees 32
- Agricultural experiment stations 31
- Croplands 31
- Sulfur fertilizers 28
- World War, 1939-1945 24
- Universities and colleges--Employees 23
- Agricultural machinery 21
- Home economics 19
- College students 14
- Orchards 13
- Oregon State Agricultural College. Agricultural Experiment Station 13