Subject
- Range plants -- Oregon78
- Sea level -- Oregon77
- Sandwich construction -- Testing75
- Wetland mapping -- Oregon74
- Coast changes -- Social aspects73
- Forests and forestry -- Northwest, Pacific73
- Human beings -- Effect of environment on73
- Wood -- Moisture73
- Clam fisheries -- Oregon71
- Fisheries69
- Report (United States. Forest Service. Northern Region. Insect and Disease Management)69
- Machine learning67
- Industrial arts -- Study and teaching66
- Forest influences65
- Oregon -- Climate63
- Codling moth -- Control61
- Wheat61
- Insecticides -- Research60
- Wood -- Preservation60
- Wood poles -- Preservation59