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Oregon agriculture
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Grasses
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Subject
Harvesting
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1. [Image] Horse drawn equipment, 1926
Oregon Experiment StationCitation -
2. [Image] Harvesting with horse drawn equipment, 1922
Oregon Experiment StationCitation -
3. [Image] Threshing vetch
Oregon Experiment StationCitation -
4. [Image] Cutting vetch, June 4, 1919
Oregon Experiment StationCitation -
Oregon Experiment Station
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6. [Image] Field scales
Oregon Experiment Station, 1923Citation -
7. [Image] Harvesting with horse drawn equipment
Oregon Experiment StationCitation -
Oregon Experiment Station
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9. [Image] Harvesting with horse drawn equipment, 1929
Oregon Experiment StationCitation -
10. [Image] Combine harvester, 1929
Oregon Experiment StationCitation