
Nancy Caldwell and Robley Dunglison Evans demonstrating breath sample flask, circa 1957

Description
Nancy Caldwell demonstrates a breath sample as Robley D. Evans looks on.
Original Caption: "Under the direction of Dr. Robley D. Evans, project leader of the Radioactivity Center at the Massachusetts Institute of Technology, Miss Nancy Caldwell demonstrates how a sample of breath is taken for studies of the long-term effect of radium on the body. Such research, it is believed, will provide clues as to the long-term effect of atomic radiation from fall-out."
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Robley D. Evans with Nancy Caldwell, circa 1957
GCP-00007954