Subject
- Agriculture -- Oregon[remove]41
- Apple industry -- Oregon -- Hood River Valley -- Cost of operation3
- Pear industry -- Oregon -- Hood River Valley -- Cost of operation3
- Forage plants -- Oregon2
- Fruit-culture -- Oregon -- Hood River Valley -- Cost of operation2
- Milk -- Flavor and odor2
- Milk hygiene2
- Potatoes -- Packing2
- Ants -- Control1
- Argyrotaenia -- Control -- Oregon1
- Bacteriophages1
- Berries -- Diseases and pests -- Control -- Oregon1
- Broilers (Chickens) -- Economic aspects -- Oregon -- Willamette River Valley1
- Broilers (Chickens) -- Feeding and feeds1
- Broilers (Chickens) -- Growth1
- Cattle -- Equipment and supplies1
- Cherry fruit-fly1
- Chicken industry -- Oregon -- Willamette River Valley -- Costs1
- Climatology1
- Clover -- Diseases and pests -- Control1