One of 138 photos, including primarily portraits, from the Sparks Photo Gallery in State Center, Iowa, circa 1900. Photographs were developed from original glass plate negatives.
One of 138 photos, including primarily portraits, from the Sparks Photo Gallery in State Center, Iowa, circa 1900. Photographs were developed from original glass plate negatives.
Two researchers in white lab coats examine an object in a laboratory that also contains a scale, a jar full of stoppered and labeled vials, and a wood and glass piece of equipment. In the inset photo, a man kneels while one baby pig comes to see…
Two researchers in white lab coats examine an object in a laboratory that also contains a scale, a jar full of stoppered and labeled vials, and a wood and glass piece of equipment. In the inset photo, a man kneels while one baby pig comes to see…
Two researchers stand before a piece of equipment. One of the researchers is pointing to a specific part of the apparatus. This photograph was featured in the Chemical Department's descriptive brochure for 1978.
Two researchers stand before a piece of equipment. One of the researchers is pointing to a specific part of the apparatus. This photograph was featured in the Chemical Department's descriptive brochure for 1978.
Two researchers in safety goggles are working with a piece of equipment. One researcher is carrying small plastic bottle and log book. This photograph was featured in the Chemical Department's descriptive brochure for 1978.
Two researchers in safety goggles are working with a piece of equipment. One researcher is carrying small plastic bottle and log book. This photograph was featured in the Chemical Department's descriptive brochure for 1978.
Two researchers are sitting on either side of a glass cylinder filled with liquid. The cylinder is attached to a base and a numeric measuring device is seen through the liquid. This photograph was featured in the Chemical Department's descriptive…
