Subject
- 4-H clubs2
- Fisheries -- Oregon2
- Apple juice -- Preservation1
- Artificial insemination1
- Birch -- Drying1
- Dairying -- Economic aspects -- Oregon -- Willamette River Valley1
- Fish culture -- Oregon1
- Fishes -- Oregon1
- Game and game-birds -- Oregon1
- Game protection -- Oregon1
- Grasses -- Oregon -- Willamette River Valley -- Seeds1
- Herbicides1
- Kitchens1
- Lumber -- Drying1
- Maple -- Drying1
- Pear -- Disease and pest resistance -- Genetic aspects1
- Rams -- Fertility1
- Sheep -- Artificial insemination1
- Wood -- Discoloration -- Prevention1