Frank Janssen, a graduate student in chemistry, with a Craig Liquid Extraction Apparatus. This apparatus, invented by Dr. Lyman Craig, an Iowa State alumnus, was widely used for separating medicinal and other biologically important materials. It…
G. F. Hanna, a graduate student in the Department of Chemistry and a research fellow of the Agricultural Experiment Station, showing the refrigerated super centrifuge along with the refrigerated bath. The room was maintained at a temperature just…
A female student in a white lab coat using a Worburg apparatus. The Worburg apparatus was widely used in biochemical and biological research for measuring rates of reaction in which gases are involved. The student is noting readings in a lab record…
A technician hand-making a piece of laboratory glassware with a torch for heat. Holding a piece of glass rod stock in the torch with one hand, the technician is modifying the glass tube by touching it with a glass rod in the flame. Glass lab ware…
Two technicians in the glass lab of the Chemistry Department. One technician is working with a torch and tubes of glass at a worktable, on which are a lighter, glass tubes, rubber stoppers and various tools.The other technician is standing in the…
Professor F. E. Brown observing a chemistry student in the lab. The student is using a dropper to add liquid to a test tube. Three other students are working in the background.
Jim Weiher at the dry box (a shielded laboratory chemical containment hood), which was used to perform chemical operations in a controlled atmosphere. Weiher is seated, with his arms inserted through portals into the inner chamber which can be viewed…
H. Frederick Hollenbeck and Frances Hiltrop working with models of complex crystals. In addition to a large model in the foreground there are models shelved behind them.
Four female students in white lab coats conducting an experiment in a chemistry laboratory. Two of the students are at the counter and two are to the rear watching while taking notes.
A female technician in a white lab coat recording the results of an experiment in organic chemistry. She is monitoring an apparatus used to separate natural products from plant material. The instrument consists of large glass tubes, beakers, and…
