This full view of the Quick curing fertilizer dryers shows the raw superphosphate disintegrator, conveyor belt, link-belt roto lourve dryer and accessory equipment.
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.
Three men are observing a plate-and-frame-filter press. A fourth individual is recording information on a clipboard. The press, which is used to make filtration tests was introduced to Iowa State University in 1953.
An almost bare Chemical laboratory has several doorways leading to other rooms. Along one section of the wall is a free standing exhibit entitled at the top: ""Chemistry and Engineering at work."" Along the bottom are the words, "" DuPont better…
Robert M. Bethea is making a presentation before an equation filled blackboard. He is surrounded by five seated faculty members, including Lawrence Burkhart, Thomas Wheelock, R. W. Fahien, George Burnett and Maurice Larson.
