Subject
- Agriculture -- Oregon -- Statistics25
- Farm produce -- Oregon -- Statistics24
- Wildlife management -- Oregon16
- Agricultural experiment stations -- Research -- Oregon -- Jackson County12
- Agriculture -- Oregon -- Jackson County -- Field experiments12
- Entomology12
- Fishing -- Oregon10
- Hunting -- Oregon10
- Soils -- Oregon9
- Vegetable gardening -- Oregon9
- Wheat9
- Game and game-birds -- Oregon8
- Game protection -- Oregon8
- Forests and forestry -- Northwest, Pacific7
- Lane County (Or.) -- History7
- Mineral industries -- Oregon7
- Natural gas -- Prospecting -- Oregon7
- Petroleum -- Prospecting -- Oregon7
- U.S. International Biological Program. Coniferous Forest Biome7
- Fish-culture -- Oregon -- Statistics6