Subject
- Amazon River Region1
- Botany -- Oregon -- McDonald State Forest1
- Botany -- Oregon -- Paul Dunn State Forest1
- Climatic changes1
- Forests and forestry1
- Forests and forestry -- Oregon1
- Grassland ecology -- Oregon -- Wallowa Mountains1
- Grazing -- Environmental aspects -- Oregon -- Wallowa Mountains1
- Green fescue -- Ecology -- Oregon -- Wallowa Mountains1
- Green fescue -- Effect of grazing on -- Oregon -- Wallowa Mountains1
- McDonald Forest (Or.)1
- Papilionidae1
- Paul Dunn State Forest (Or.)1
- Plant succession -- Oregon -- Wallowa Mountains1
- Quality control -- Charts, diagrams, etc.1
- Sampling (Statistics)1
- Wallowa National Forest (Or.)1
- Whitman National Forest (Or.)1