Subject
- U.S. International Biological Program. Coniferous Forest Biome156
- Lumber -- Drying149
- Agriculture -- Oregon92
- Range plants -- Oregon78
- Sandwich construction -- Testing75
- Wood -- Moisture75
- Clam fisheries -- Oregon73
- Report (United States. Forest Service. Northern Region. Insect and Disease Management)69
- Forests and forestry -- Oregon64
- Wood poles -- Preservation64
- Weeds -- Control61
- Forest influences60
- Shellfish fisheries -- Oregon -- Management60
- Oregon -- Climate59
- American wood58
- Wood -- Preservation58
- Fisheries -- Oregon57
- Fish culture -- Oregon55
- Herbicides54
- Report (United States. Forest Service. Northern Region. Forest Pest Management)54