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    • 1950s – circa

    Portrait of Henry Bohn Haas (1902-1987), a specialist in organic chemistry who is credited with the discovery of gas chromatography. Haas was born in Huntington, Ohio and received his doctorate from Ohio State in 1925.…

    • 1950s

    Portrait of John Van Nostrand Dorr (1872-1962). In partnership with John Lundberg and A.D. Wilson, Van Nostrand Dorr owned the Lundberg, Dorr, & Wilson gold & silver mining operation in Terry, South Dakota. In 1916, he…

    • 1950s – circa

    View of chemist George Wieczorek (right) using a Geiger counter to measure ionizing radiation in an unknown substance, likely soil or fertilizer, at an unidentified U.S. Department of Agriculture facility.

    • 1950s – circa

    George Wieczorek (right) and two unidentified chemists handling radioactive material at an U.S. Department of Agriculture facility. The U.S.D.A. commonly used radioactive material for a variety of research and testing,…

    • 1950s – circa

    View of chemist George Wieczorek removing a vessel from a Pereco kiln at an unidentified U.S. Department of Agriculture facility.

    • 1950s – circa

    View of chemist William A. Jackson using a Gieger counter to examine a package at an unidentified U.S. Department of Agriculture facility. The U.S.D.A. commonly used radioactive material for a variety of research and…

    • 1950s – circa

    View of chemist George Wieczorek (right) and an unidentified chemist using a Geiger counter to measure ionizing radiation in an unknown substance at a U.S. Department of Agriculture facility. The U.S.D.A. commonly used…

    • 1950s – circa

    View of chemist George Wieczorek (left) and an unidentified chemist using a Geiger counter to measure ionizing radiation in radioisotopes at an unidentified U.S. Department of Agriculture facility. A box of…

    • 1950s

    Portrait of Percy Lavon Julian (1899-1975), African American research chemist and pioneer in the chemical synthesis of medicinal drugs from plants.

    Percy Lavon Julian was born in Montgomery, Alabama on April 11, 1899…

    • 1950s

    Portrait of American chemist Francis Cowles Frary (1884-1970), best known for his work with phosgene gas and the production of aluminium.

    Francis Cowles Frary was born on July 9, 1884 in Minneapolis, Minnesota and…

    • 1950s

    Portrait of Edgar Clay Britton (1891-1962). Born in Rockville, Indiana in 1891, Britton studied chemistry at the University of Michigan under Dr. William J. Hale. He earned his Ph.D. from Michigan in 1918 and, while at…

    • 1958

    Cachet and stamp depict Claude-Louis Berthollet. Cachet includes text describing Berthollet's contributions to water purification.

    • circa 1958

    Portrait of Howard Farkas (d. 1978). Farkas graduated from New York University in 1915 and was senior vice president and secretary of the U.S. Stoneware Co. He served as President of the Chemists' Club of New York from…

    • 1955-Oct-09

    Stamp depicts Leo Hendrik Baekeland, a Belgian chemist who invented Bakelite (polyoxybenzylmethylenglycolanhydride) in 1907. Bakelite was an inexpensive, versatile, and popular plastic, which marked the beginning of the…

    • 1955-Mar-07

    On March 7, 1955, France issued a set of six stamps under the theme "Famous Inventors." One of these stamps featured Sainte-Claire Deville who created metallic aluminum in 1855. Stamp depicts modern uses of aluminum…

    • 1955

    Lithograph portrait of Vannevar Bush, by the artist Eugene A. Montgomery. Bush is shown in a 3/4 view holding a graduated cylinder and beaker, with a pipe clenched in one corner of his mouth. This portrait was created…

    • circa 1954

    Depicts a chemist with test tube and flask, as well as the chemical structure of a carboxyl group.

    • 1951

    Cachet and semipostal stamp depict Gay-Lussac. Cachet depicts a book titled "Law of Gay-Lussac" and various scientific apparatus. Envelope is addressed to Mrs. Richard M. Lawrence, President of the ACS Wives Club.

    • 1951

    Cachet created by Fleetwood depicts "The Chemist" along with ACS logo and the tagline, "Maker of a Better Tomorrow." Stamp issued to commemorate the diamond jubilee of the American Chemical Society. Addressed to and…

    • circa 1950

    Portrait of Benjamin Talbot Brooks (b. 1885). Brooks was an authority on petroleum and author of several volumes on the subject, including The Chemistry of Petroleum Hydrocarbons (1954-55).

    • 1940s – circa

    Portrait of James A. Rafferty (1886-1951). Rafferty was born in Chicago, Illinois on May 4th, 1886 and studied engineering and chemistry at the Lewis Institute of Technology. Following his graduation from Lewis in 1908,…