Subject
- Fisheries -- Oregon187
- Game and game-birds -- Oregon184
- Game protection -- Oregon183
- 4-H clubs156
- Potatoes -- Oregon -- Klamath County79
- Wildlife management -- Oregon55
- Agriculture -- Oregon52
- Fishing -- Oregon48
- Hunting -- Oregon48
- Douglas fir47
- Forests and forestry -- Oregon42
- Forests and forestry -- Northwest, Pacific40
- Herbicides36
- Soils -- Oregon35
- Forests and forestry -- Research -- Oregon34
- Engineering33
- Cattle -- Feeding and feeds32
- Reforestation -- Oregon28
- Swine -- Feeding and feeds24
- Wheat24