Subject
- Lane County (Or.) -- History35
- Agricultural pests -- Control -- Congresses30
- Forests and forestry -- Northwest, Pacific27
- United States. Forest Service. Pacific Northwest Region20
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club20
- Fisheries -- Oregon17
- Oregon State University -- Curricula12
- Fish culture -- Oregon11
- Oregon -- History9
- Forests and forestry -- Research -- Oregon8
- Counseling7
- Educational counseling7
- Forests and forestry -- United States -- Bibliography6
- Game and game-birds -- Oregon6
- Insects -- Northwest, Pacific6
- Irrigation farming6
- 4-H clubs5
- Beetles -- Northwest, Pacific5
- Engineering -- Research -- Oregon5
- Forest products -- Research -- Oregon5