Iowa Heritage Digital Collections
State Library of Iowa

Browse Items (1817 total) for Iowa State University Library Photograph Collection

Two students determining the depth of a trench on a drainage model, 1957
Students examining a silage cutter, 1957
Students observing a large piece of agricultural equipment, 1957
Dr. Bockhop and students observing a tillage system with a model tractor, 1957
Instructor teaching a group of students about a tractor, 1957
Students observing a tractor cultivating a field, 1957
Four students studying  a tractor equipped with a seed spreader, 1957
Dr. Bockhop working on soil bin similitude studies, 1957
Professor Johnson and three students investigating water hydrant fixtures, 1957
Agricultural engineering student using an engineer's transit, 1957
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