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Subject Food industry and trade--Safety regulations Remove constraint Subject: Food industry and trade--Safety regulations

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    • 1916 – before 1928

    General view of an employee in the Bureau of Chemistry's Phytochemical Laboratory using a distillation apparatus to concentrate the odorous constituents of apples and peaches. Part of the U.S. Department of Agriculture,…

    • after 1901 – 1928

    General view of an employee in the Bureau of Chemistry's Water and Beverage Laboratory conducting an analysis on an unidentified substance. Assorted sample jars and scientific apparatus are visible in the photograph.…