Subject
- Fisheries -- Oregon343
- Game and game-birds -- Oregon327
- Game protection -- Oregon326
- Oregon State University -- Curricula195
- Wildlife management -- Oregon148
- Fishing -- Oregon134
- Hunting -- Oregon134
- Lane County (Or.) -- History84
- Fisheries -- Economic aspects -- Congresses83
- 4-H clubs82
- Forests and forestry -- Oregon82
- Agricultural pests -- Control -- Congresses74
- Forests and forestry -- Northwest, Pacific69
- Oregon State University. College of Forestry62
- Douglas fir60
- Herbicides60
- Sustainable fisheries -- Congresses56
- Forests and forestry -- Research -- Oregon54
- Industrial arts -- Study and teaching53
- Heat -- Transmission43