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Department Archives Remove constraint Department: Archives Rights No Known Copyright Remove constraint Rights: No Known Copyright Date 1926 Remove constraint Date: 1926

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    • 1920s – circa

    Portrait of Samuel Cox Hooker (1865-1935). Hooker was born on April 19, 1865, in Benchley, Kent, England and studied at the Government Science School in South Kensington, London. Hooker earned his PhD from the…

    • 1920s

    Portrait of Marston Taylor Bogert (1868-1954), American Chemical Society President (1907-1908) known for his work on the synthesis of heterocyclic compounds, dyes, pharmaceuticals, and perfumes.

    Marston Taylor Bogert…

    • 1920s – circa

    Portrait of Herbert Freundlich (1880-1941). A student of Wilhelm Ostwald, Freundlich received his doctorate from the University of Leipzig in 1903 following his dissertation on the precipitation (coagulation) of colloid…

    • 1920s

    General view of an unidentified man, presumably a laboratory assistant, seated at a work bench while examining an unknown substance. While the setting of this photograph is also unidentified, the photo was donated along…

    • 1920s

    General view of an unidentified man, presumably a laboratory assistant, posed near a work bench with assorted scientific apparatus, including a microscope. While the setting of this photograph is also unidentified, the…

    • 1920s

    General view of an unidentified man, presumably a laboratory assistant, seated at a work bench with assorted scientific equipment and glassware. While the setting of this photograph is also unidentified, the photo was…

    • 1920s

    General view of an unidentified woman, presumably a laboratory assistant, posed near a work bench with assorted scientific apparatus and glassware visible in the background. While the setting of this photograph is also…

    • 1920s

    General view of an unidentified woman, presumably a laboratory assistant, posed near a work bench with assorted scientific apparatus and glassware visible in the background. While the setting of this photograph is also…

    • 1920s

    General view of an unidentified woman, presumably a laboratory assistant, posed near a work bench with assorted scientific apparatus and glassware visible in the background. While the setting of this photograph is also…

    • 1920s

    General view of an unidentified man, presumably a laboratory assistant, posed near a work bench with assorted scientific apparatus and glassware visible in the background. While the setting of this photograph is also…

    • 1920s

    General view of an unidentified woman, presumably a laboratory assistant, posed near a work bench with assorted scientific apparatus and glassware visible in the background. Notably, the photograph is printed as a…

    • 1920s

    General view of a laboratory bench with assorted glassware and scientific apparatus. Notably, the photograph is printed as a postcard, with space reserved on the verso for a message, mailing address, and postage. While…

    • 1920s

    General view of a laboratory assistant, identified as "Mac May," posed at a work bench for mixed acid materials. Notably, the photograph is printed as a postcard, with space reserved on the verso for a message, mailing…

    • 1920s

    General view of a laboratory assistant, identified as "Mac May," posed at a work bench for mixed acid materials. Notably, the photograph is printed as a postcard, with space reserved on the verso for a message, mailing…

    • 1920s

    General view of an unidentified laboratory facility looking toward the supply store from the perspective of the chief's office, with inscriptions indicating the location of offices and work benches associated with…

    • 1920s

    General view of an unidentified laboratory facility looking toward the chief's office from the perspective of the supply store, with a side view of various offices and work benches. Notably, the photograph is printed as…

    • 1920s

    Close-up view of an electrolytic apparatus at a laboratory work bench attributed to the U.S. Bureau of Standards. Notably, the photograph is printed as a postcard, with space reserved on the verso for a message, mailing…

    • 1920s

    General view of an unidentified employee analyzing an unidentified substance at the Dearborn Chemical Company's 35th Street laboratory facility and manufacturing plant. A microscope and water quality test kit are…

    • 1920s

    General view of employee Al Herman analyzing an unidentified substance at the Dearborn Chemical Company's 35th Street laboratory facility and manufacturing plant. Assorted scientific apparatus and laboratory glassware…

    • 1920s

    General view of an unidentified employee at work in the Dearborn Chemical Company's 35th Street Laboratory facility and manufacturing plant. A variety of titration equipment and other scientific apparatus are visible on…

    • 1920s

    Portrait of American chemist John Edgar Teeple (1874 – 1931), best known for his discovery of a process for separating potash from borax.

    John Edgar Teeple was born on January 4, 1874 in Kempton, Illinois and educated…

    • after 1920 – 1944

    Portrait of Leo Hendrik Baekeland (1863-1944), inventor of Bakelite, the first fully synthetic plastic.

    • circa 1926

    Portrait of Lammot du Pont II (1880-1952), former President of the E.I. du Pont de Nemours & Company (1926-1940) and Chairman of the Board of Directors.

    • circa 1957 (Date attributed to slide)
    • 1926 (Original design)

    Graphic representation of the periodic table of chemical elements in the style of a symmetrical series table constructed as a quadrangle. This type of table was originated by Estonian-born German chemist Andreas von…

    • circa 1957 (Date attributed to slide)
    • 1926 (Original design)

    Graphic representation of the periodic table of chemical elements designed as a right-side electronic configuration series table symmetrical about a horizontal line. This table was originated by Italian chemists Luigi…