Iowa Heritage Digital Collections
State Library of Iowa

Browse Items (6 total)

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Dr. Bockhop working on soil bin similitude studies, 1957
Four men observing a tractor with extra equipment performing work on the soil in a field, for a Rural Minister Short Course., 1961.
Equipment prepared for soil testing
Dr. Bockhop working on soil bin similitude studies, 1957
Four men observing a tractor with extra equipment performing work on the soil in a field, for a Rural Minister Short Course., 1961.
Equipment prepared for soil testing
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