Subject
- Agricultural experiment stations -- Research -- Oregon -- Jackson County1
- Agriculture -- Oregon -- Jackson County -- Field experiments1
- Corvallis (Or.) -- Climate1
- Dungeness crab -- Bibliography1
- Entomology1
- Fish hatcheries -- Oregon1
- Fish-culture -- Economic aspects -- Oregon1
- Little White Salmon National Fish Hatchery (Ore.)1
- Willard National Fish Hatchery (Ore.)1