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Miss Dorothy Ehmke, conducting urea tests on the blood of pregnant rats as part of a study of the effect of meat diets on toxemic pregnancy in rats. In the research lab in the home economics department at Iowa State College. Ames, Iowa
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Credit lineMiss Dorothy Ehmke, conducting urea tests on the blood of pregnant rats as part of a study of the effect of meat diets on toxemic pregnancy in rats. In the research lab in the home economics departmen. 1942-01-01. Delano, Jack. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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