Subject
- Game and game-birds -- Oregon112
- Game protection -- Oregon111
- Fisheries -- Oregon108
- Herbicides -- Research13
- Weeds -- Control -- Research13
- 4-H clubs11
- Fisheries -- Pacific Coast (North America)10
- Fishery law and legislation -- Pacific Coast (North America)10
- Mineral industries -- Oregon10
- Trawls and trawling -- Pacific Coast (North America)10
- Agricultural experiment stations -- Research -- Oregon -- Jackson County9
- Agriculture -- Oregon -- Jackson County -- Field experiments9
- Entomology9
- Natural gas -- Prospecting -- Oregon8
- Petroleum -- Prospecting -- Oregon8
- Vegetables -- Varieties -- Oregon8
- Agricultural pests -- Control -- Congresses7
- Dungeness crab fisheries -- Oregon7
- Fishes -- Habitat -- Conservation -- Oregon7
- Forest management -- Oregon7