Iowa Heritage Digital Collections
State Library of Iowa

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

Four students studying a tractor equipped with a seed spreader, 1957

Four students studying a tractor equipped with a seed spreader, 1957

Four students study a piece of farm equipment, a tractor equipped with a seed spreader.
Students observing a tractor cultivating a field, 1957

Students observing a tractor cultivating a field, 1957

Thirteen students observe someone driving a tractor and cultivating a field.
Instructor teaching a group of students about a tractor, 1957

Instructor teaching a group of students about a tractor, 1957

An instructor explains the front mechanics of a tractor to six students in a laboratory with five other tractors.
Dr. Bockhop and students observing a tillage system with a model tractor, 1957

Dr. Bockhop and students observing a tillage system with a model tractor, 1957

Dr. Clarence Bockhop (left) and two students observe a plain tillage linkage system with a model tractor.
Students observing a large piece of agricultural equipment, 1957

Students observing a large piece of agricultural equipment, 1957

In the Power and Machinery Lab, a group of students observe a large piece of Papec agricultural equipment.
Students examining a silage cutter, 1957

Students examining a silage cutter, 1957

In the Power and Machinery Lab, students examine a silage cutter.
Two students determining the depth of a trench on a drainage model, 1957

Two students determining the depth of a trench on a drainage model, 1957

Agricultural engineers Kent Mitchell (left) and Gerald Hollander work out the relationship between the depth of trench and height if target on a tile drainage model.
Student learning electronic principles in the Agricultural Engineering Laboratory, 1957

Student learning electronic principles in the Agricultural Engineering Laboratory, 1957

Bill Waters, agricultural engineering senior, learns electronic principles in the laboratory. An oscilloscope, and recording and indicating instruments, are used to show the characteristics of the circuits.
John Teeter demonstrating an engineer's level, 1957

John Teeter demonstrating an engineer's level, 1957

Agricultural engineer John Teeter uses an engineer's level in soil and water conservation work.
Students working at large desks in the Drafting Lab, 1957.

Students working at large desks in the Drafting Lab, 1957.

Students work at large desks in the Drafting Lab.
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