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Topic
- Agriculture 18
- Oregon State University. Extension Service 10
- Farm ownership 8
- Farm tenancy--Economic aspects 8
- Barns 7
- Croplands 7
- Farms--Oregon 7
- Mints (Plants) 4
- Agricultural laborers 3
- Dill 3
- Food--Preservation 3
- Roads 3
- Agricultural exhibitions 2
- Demonstrations 2
- Forests and forestry 2
- Harvesting machinery 2
- Labor camps 2
- Sheep 2
- 4-H clubs 1
- Agricultural machinery 1