- Shipping -- Northwest, Pacific -- Congresses5
- Coastwise shipping -- Northwest, Pacific -- Congresses4
- Merchant marine -- Northwest, Pacific -- Congresses4
- Sheep -- Health -- Congresses4
- Sheep -- Oregon -- Congresses4
- Wool -- Congresses4
- Barges -- Northwest, Pacific -- Congresses3
- Cargo ships -- Northwest, Pacific -- Congresses3
- Curly top disease -- Northwest, Pacific3
- Grapes -- Diseases and pests -- Northwest, Pacific3
- Hop downy mildew fungus -- Control -- Northwest, Pacific3
- Pea-weevil -- Control -- Northwest, Pacific3
- Sheep -- Northwest, Pacific -- Congresses3
- Wheat trade -- Northwest, Pacific3
- Bees -- Northwest, Pacific2
- Byturidae -- Northwest, Pacific2
- Cattle -- Nevada -- Feeding and feeds2
- Cattle -- Northwest, Pacific -- Feeding and feeds2
- Cereal grasses -- Diseases and pests -- Northwest, Pacific2
- Easter lily -- Northwest, Pacific2