State Library of Iowa
Copyright and Ownership
Welcome to the Iowa Heritage Digital Collections
Collection Development Policy
Digitization Resources for participants in the Iowa Heritage Digital Collections
Omeka Directions: Adding Items to Omeka
Steps to Participation
Dublin Core and Item Type Metadata descriptions
Required Dublin Core Fields for Items
Browse Items (170 total)
Browse by Tag
Young researcher checking equipment in laboratory, 1980
A young researcher with raised arm is adjusting a piece of equipment in a laboratory. This photograph is featured in a Chemical Engineering brochure, Jan. 23, 1980
Researcher surrounded by control panels, 1973
A researcher is sitting at the table surrounded on two sides by various control panels.
Instructor and student, 1947
An Instructor and student run a test on sand and gravel using water and classification table.
Researcher with slide rule
A researcher is sitting at a desk working out calculations on a slide rule. There are papers and several books laying open on desk.
Bubble cap column
Two researchers are standing before a bubble cap column. The column is surrounded by metal scaffolding and stairs lead to the upper levels. One individual is standing on the highest level near the top of the column.
Thomas D. Wheelock and researchers study apparatus.
Thomas D. Wheelock and two other researchers are in the chemical engineering lab examining a tall tube shaped apparatus.
Quick curing fertilizer dryer, 1953 or 1954
This full view of the Quick curing fertilizer dryers shows the raw superphosphate disintegrator, conveyor belt, link-belt roto lourve dryer and accessory equipment.
Four researchers at work
Four researchers work on various parts of a large, two story piece of machinery.
General Mills presents a computer to the Department of Chemical Engineering, 1976
Four individuals are standing in front of the computer. The computer is in the foreground and men are in the background.
E.C. Kapusta and George West
E.C. Kapusta and George West are both working on a large piece of equipments. There are Brown gauges in the foreground and a system of belts and pulleys in the background.