Subject
- Pear2
- Potatoes2
- Agriculture -- Oregon -- Experimentation1
- Apples1
- Aspen1
- Barrels -- Testing1
- Clarke County (Wash.) -- Biography1
- Cold-frames -- Oregon1
- Conifers1
- Corn1
- Cream1
- Creosote1
- Dairy products industry -- Quality control1
- Eggs -- Production1
- Flies -- Control1
- Hotbeds -- Oregon1
- Irrigation1
- Irrigation -- Research -- Oregon1
- Land use -- Oregon -- Siuslaw National Forest -- Classification1
- Legends -- Washington (State)1