Subject
- Game protection -- Oregon33
- Game and game-birds -- Oregon32
- Fisheries -- Oregon22
- Industrial arts -- Study and teaching11
- Forests and forestry -- Northwest, Pacific10
- Forests and forestry -- Oregon10
- Forest surveys -- Oregon9
- Forests and forestry -- Oregon -- Statistics9
- Sandwich construction -- Testing9
- Fish-culture -- Oregon -- Statistics6
- Fishery management -- Oregon -- Statistics6
- Fishing -- Oregon -- Statistics6
- Forests and forestry -- Research -- Northwest, Pacific6
- Pacific Northwest Forest and Range Experiment Station (Portland, Or.)6
- Vocational guidance6
- Agriculture -- Oregon4
- Buckling (Mechanics) -- Mathematical models4
- Honeycomb structures -- Testing4
- Industrial arts4
- Adult education3