Subject
- Agricultural pests -- Control -- Congresses6
- Fruit trees -- Diseases and pests -- Control3
- Mosses -- Control3
- Nut trees -- Diseases and pests -- Control3
- Roofs -- Maintenance and repair3
- Spraying and dusting in agriculture3
- Slugs (Mollusks) -- Control2
- Strawberry-weevil -- Control -- Oregon2
- Blueberries -- Diseases and pests -- Control -- Oregon -- Willamette River Valley1
- Bruchus -- Control -- Oregon1
- Carpenter ants -- Control -- Oregon, Western1
- Conglomerate -- Oregon -- Baker County1
- Cranberries -- Northwest, Pacific1
- Elaphomyces1
- Emery -- Oregon -- Linn County1
- Geology -- Oregon1
- Geology -- Oregon -- Baker County1
- Gravity anomalies -- Oregon1
- Hodotermitidae -- Control -- Oregon, Western1
- Mining law1