Subject
- Forest fires -- Prevention and control4
- Wood waste -- Recycling2
- Carbonization1
- Charcoal -- Northwest, Pacific1
- Charcoal industry -- Northwest, Pacific1
- Douglas fir1
- Fiberboard -- Marketing1
- Fiberboard industry -- Oregon1
- Fir-Tex Insulating Board Company1
- Fire weather1
- Fire weather -- Forecasting1
- Forest fires -- Oregon1
- Forest influences1
- Forest meteorology1
- Kilns1
- Lichens1
- Lumber| -- Drying -- Equipment and supplies1
- Plants -- Variation1
- Plants, Effect of light on1
- Ponderosa pine1