Iowa Heritage Digital Collections
State Library of Iowa

Browse Items (10 total)

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Dr. Bockhop working on soil bin similitude studies, 1957
Dr. Bockhop and students observing a tillage system with a model tractor, 1957
Two students determining the depth of a trench on a drainage model, 1957
Dr. Bockhop working on soil bin similitude studies, 1957
Dr. Bockhop and students observing a tillage system with a model tractor, 1957
Two students determining the depth of a trench on a drainage model, 1957
Model of Niagara Falls power plants, The University of Iowa, 1927
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