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Research laboratory at Trowbridge Hall, The University of Iowa, 1917

Research laboratory at Trowbridge Hall, The University of Iowa, 1917

Research laboratory at Trowbridge Hall, The University of Iowa, 1917

Research laboratory at Trowbridge Hall, The University of Iowa, 1917

Research for an article about Carrie Chapman Catt, 1888-1929

Research for an article about Carrie Chapman Catt, 1888-1929

Research facilities of the University of Iowa Hospitals and Clinics, The University of Iowa, 1940s?

Research facilities of the University of Iowa Hospitals and Clinics, The University of Iowa, 1940s?

Research facilities of the University of Iowa Hospitals and Clinics, The University of Iowa, 1940s?

Research facilities of the University of Iowa Hospitals and Clinics, The University of Iowa, 1940s?

Research facilities of the University of Iowa Hospitals and Clinics, The University of Iowa, 1940s?

Research facilities of the University of Iowa Hospitals and Clinics, The University of Iowa, 1940s?

Research facilities of the University of Iowa Hospitals and Clinics, The University of Iowa, 1940s?

Research facilities of the University of Iowa Hospitals and Clinics, The University of Iowa, 1940s?

Research equipment,1938

Research equipment,1938

Two cylindrical tanks are connected together by pipes at the top. There is a large drum and motor at the base of this piece of equipment.
Research equipment,1938

Research equipment,1938

Two cylindrical tanks are connected together by pipes at the top. There is a large drum and motor at the base of this piece of equipment.
Research equipment, wide view, 1937

Research equipment, wide view, 1937

This is a piece of equipment in a processing plant. There is a white sheet behind the equipment. See photograph 840-01-03 for a close up view of part of this equipment.