Subject
- Lumber -- Drying68
- Agriculture -- Oregon66
- Fisheries -- Oregon50
- Fish culture -- Oregon49
- American wood48
- U.S. International Biological Program. Coniferous Forest Biome46
- Wood poles -- Preservation46
- Forests and forestry -- Oregon40
- Range plants -- Oregon40
- Sandwich construction -- Testing40
- Weeds -- Control40
- Herbicides36
- Wood -- United States34
- Forests and forestry -- Northwest, Pacific33
- Wood -- Moisture32
- Columbia Basin Agricultural Research Center -- Periodicals30
- Engineering29
- Greenhouse gases -- Forecasting27
- Laminated plastics -- Mechanical properties27
- Wood -- Preservation27