Subject
- Game and game-birds -- Oregon141
- Game protection -- Oregon140
- Fisheries -- Oregon136
- Educational counseling28
- Industrial arts -- Study and teaching28
- Herbicides21
- Beef cattle18
- Douglas fir18
- Heat -- Transmission14
- Home economics -- Study and teaching12
- Industrial arts12
- Zirconium12
- Cattle -- Feeding and feeds11
- Counseling11
- Insecticides11
- Purines11
- Wood -- Chemistry11
- Amino acids10
- Chemical reactions10
- Geology -- Oregon10