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1. Man studying soil

Man studying soil

2. Willamette Site 236 soil profile, Oregon, circa 1965

3. Tight closeup of soil, Oregon State University, Corvallis, Oregon, 1975

Tight closeup of soil, Oregon State University, Corvallis, Oregon, 1975

4. Soil mixed in cement mixer, Oregon State University, Corvallis, Oregon, 1975

Soil mixed in cement mixer, Oregon State University, Corvallis, Oregon, 1975

5. Evaluation of soil management practices sign, Jackson Farm, Corvallis, Oregon, 1966

Evaluation of soil management practices sign, Jackson Farm, Corvallis, Oregon, 1966

6. Researcher adding culture to soil in cement mixer, Oregon State University, Corvallis, Oregon, 1975

Researcher adding culture to soil in cement mixer, Oregon State University, Corvallis, Oregon, 1975

7. Field Soils Study and Description instruction board, Oregon, circa 1965

Field Soils Study and Description instruction board, Oregon, circa 1965

8. Soil profiles, Oregon State University, Corvallis, Oregon, 1968

Soil profiles, Oregon State University, Corvallis, Oregon, 1968

9. Evaluation of soil ridging in the fall test plots, Jackson Farm, Corvallis, Oregon, 1966

Evaluation of soil ridging in the fall test plots, Jackson Farm, Corvallis, Oregon, 1966

Description: Sweet corn and bush beans were used in the evaluation.

10. Dirt bank on Whiddy Island, Ireland

Dirt bank on Whiddy Island, Ireland

Description: These photographs of Ralph Gifford's were taken while he was stationed at Whiddy Island, Ireland, with the U.S. Navy during World War I.