Subject
- Bark13
- Wood -- Chemistry11
- Douglas fir7
- Bark -- Composition3
- Fir3
- Phenols3
- Cellulose2
- Forest products2
- Lignin2
- Abies grandis -- Composition1
- Arthropoda -- Locomotion1
- Bark -- Analysis1
- Chemistry, Analytic1
- Condensation products (Chemistry)1
- Cork1
- Douglas fir -- Composition1
- Fatty acids1
- Geology -- California -- Siskiyou County1
- Geology -- Oregon -- Jackson County1
- Gums and resins, Synthetic1