Subject
- Forests and forestry -- Oregon79
- Forests and forestry -- Research -- Oregon72
- Oregon State University. College of Forestry59
- Reforestation -- Oregon59
- Forest influences22
- Forests and forestry22
- Oregon -- Climate22
- Wood poles -- Preservation20
- Wood poles -- Maintenance and repair19
- Forest products -- Research -- Oregon17
- Oregon State University. Forest Research Laboratory17
- Wood poles -- Fumigation17
- Douglas fir15
- Starker lectures14
- Forest management -- Research -- Oregon12
- Herbicides -- Research -- Oregon12
- Reforestation -- California, Northern9
- Forests and forestry -- Oregon -- Measurement8
- Wood -- Preservation7
- Forest products -- Bibliography6