Date: | 02 23 1945 |
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Description: | Dorothy Johansson, research assistant in zoology at the University of Wisconsin, performing an experiment using white rats to check techniques being develo... |
Date: | 08 08 1950 |
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Description: | Portrait of Professor Joseph Hirschfelder, University of Wisconsin chemist. He also is project director for the U.W. Naval Research Laboratory, member of t... |
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