Subject
- Game protection -- Oregon57
- Oregon State University -- Curricula57
- Game and game-birds -- Oregon55
- Fisheries -- Oregon37
- Agricultural pests -- Control -- Congresses19
- Oceanography -- Research12
- Wildlife management -- Oregon12
- Fish-culture -- Oregon -- Statistics11
- Fishery management -- Oregon -- Statistics11
- Fishing -- Oregon -- Statistics11
- Vegetable gardening -- Oregon11
- Bark10
- Fish culture -- Oregon10
- Hatfield Marine Science Center10
- Marine sciences10
- Radioactive pollution of water -- Columbia River10
- Douglas fir9
- Forest ecology -- West (U.S.)9
- Forests and forestry -- Northwest, Pacific9
- Wood poles -- Preservation9