Subject
- Douglas fir3
- Lumber trade -- Northwest, Pacific2
- Aerial photogrammetry1
- Architecture, Domestic1
- Bridges, Truss -- Design and construction1
- Building materials -- Grading1
- Building materials -- Prices1
- Building, Wooden1
- Cartography1
- Cost accounting1
- Douglas fir -- Diseases and pests1
- Employees -- Attitudes -- Evaluation1
- Fasteners1
- Fire weather -- Oregon -- Forecasting1
- Fomes pini1
- Forest fire detection1
- Forest fire forecasting -- Oregon1
- Forest fires -- Northwest, Pacific -- Prevention and control1
- Forest management -- Oregon -- Smith River Region1
- Forest reserves -- California -- Tahoe National Forest -- Recreational use1