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- Agriculture 153
- Orchards 20
- Oregon State University. Extension Service 18
- Harvesting 17
- Agricultural laborers 11
- Croplands 8
- Packing-houses 8
- Portraits, Group 8
- Agricultural implements 7
- Hops 7
- Livestock 7
- Wagons 7
- Mules 6
- Plows 6
- Wheat 6
- Experiments 5
- Horses 5
- Horticulture 5
- Sheep 5
- Vineyards 5
