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Topic
- Croplands 19
- Potatoes 11
- Universities and colleges--Employees 10
- Universities and colleges--Faculty 10
- Agricultural experiment stations 8
- Grain 7
- Lumber trade 7
- Sawmills 6
- Alfalfa 5
- Oregon State University. Extension Service 5
- Portraits, Group 5
- Agriculture 4
- Cities and towns 4
- Gross, Alvin Eugene 4
- Oregon State University. Agricultural Experiment Station 4
- School of Agriculture 4
- Signs and signboards 4
- Triticale 4
- Bankers 3
- Barley 3
