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    • 1700s

    Seated in a disorderly and rustic workshop, an alchemist examines a flask while scratching his head, deep in thought. Scattered about the floor are books, vessels, and a dog which has curled up in a pile of straw. More…

    • 1700s

    A bearded alchemist sits in the midst of a bustling workshop, tending a small brazier of coals with a hand-bellows. Objects for metalworking- including an anvil, crucible, furnace and hammer- are joined by vessels for…

    • circa 1640 – 1677

    The alchemist's workroom, cluttered with broken vessels and scattered papers, is lit with warm yellow light from the double window at left. Through a large archway we see the alchemist at work by his desk, studiously…

    • 1700s

    A bearded, seated alchemist, wearing glasses and bright red shirt, bends over an open book on a desk stacked high with a mess of papers and glassware. The trail of books continues to the ground with broken and unbroken…

    • circa 1640 – 1677

    A dark study illuminated by single leaded glass window at left; in middle ground a seated man behind cluttered desk faces slightly left; open and closed books, papers, jars and jugs scattered on floor; at right a seated…

    • 1800s

    A physician wearing the traditional physician's cap conducts a urinoscopy on the flask he holds. A woman is seated beside him, waiting for the results. In the foreground the alchemist's assistant is tending to a furnace…

    • 1935 – 1945

    General view of a German aircraft with a Plexiglas windshield and nose panels. Per notations accompanying the photograph, the plane is identified as a Heinkel-Flugzeug HE 111, a type of bomber designed to masquerade as…

    • 1958-Jun-20

    Close-up view of a Plexiglas auger (a type of drilling device or drill bit) manufactured at an unidentified Rohm and Haas Company facility.

    The Rohm and Haas Company was founded in 1907 in Esslingen, Germany through…

    • 1958-Jun-20

    General view of the production of a Plexiglas auger (a type of drilling device or drill bit) at an unidentified Rohm and Haas Company facility. The employee visible in the photograph is also unidentified.

    The Rohm and…

    • 1963-Apr-15

    General view of Philadelphia Mayor James Tate (center) and two unidentified Rohm and Haas Company executives at the groundbreaking ceremony for the Rohm and Haas Company headquarters located on Independence Mall.…

    • 1959-Apr-22

    General view of an exhibition display board detailing the use of Plexiglas windows on jet-powered airliners. The board features several photographs of airliners, as well as samples of Douglas DC-8 and Lockheed Electra…

    • 1956-Apr-19

    General view of a display board featuring assorted samples of automotive and appliance parts made with Plexiglas molding powder, including taillight lens, dome lights, and hood medallions.

    The Rohm and Haas Company…

    • 1948-Feb

    General view of several rows of Plexiglas panels positioned on racks. Per notations accompanying the photograph, the panels are set up for an outdoor exposure test designed to demonstrate the weathering capabilities of…

    • 1953-Feb

    General view of a Union Pacific Railroad car featuring Plexiglas panels concealed under metal screens. Per notations accompanying the photograph, this box car was used to test and measure the movement of the panels and…

    • 1953-Mar

    General view of entomologist E.E. ("Gene") Kenaga at work in the storage room for grain insect cultures at the Dow Chemical Company's Agricultural Chemical Research and Development Laboratory. Per notations accompanying…

    • 1941-Aug

    General view of chemist Bernie Thiegs preparing an insecticide intended to combat potato beetles at the Dow Chemical Company's Agricultural Chemical Research and Development Laboratory facilities. Per an article in the…

    • 1941-Aug

    General view of two employees at work in a Dow Chemical Company Agricultural Chemical Research and Development Laboratory facility. Per an article in the August 1941 edition of the Dow Diamond, the department was…

    • 1941-Aug

    General view of the central corridor of a greenhouse associated with the Dow Chemical Company's Agricultural Chemical Research and Development Laboratory. Per an article in the August 1941 edition of the Dow Diamond,

    • circa 1960-Jul

    General view of technician Mary Moffit using an infrared spectrophotometer to analyze a sample of the insect repellent Metadelphene in a laboratory at the Hercules Powder Company plant in Brunswick, Georgia. Per…

    • circa 1960-Jul

    General view of boilermaker Hubbie H. Hattaway operating an acetylene cutting torch in the machine shop at the Hercules Powder Company plant located in Brunswick, Georgia. Per notations accompanying the photograph, the…

    • circa 1960-Jul

    General view of research assistant Evelyn Kieffer using a reactor flask to analyze an unidentified substance in a laboratory at the Hercules Powder Company plant in Brunswick, Georgia. One of two Hercules plants…

    • circa 1960-Jul

    General view of the exterior of the manufacturing facilities for Toxaphene, an insecticide concentrate, at the Hercules Powder Company plant in Brunswick, Georgia. One of two Hercules plants specializing in naval…

    • 1893

    Comprehensive book on the ice industry with content and illustrations on the harvesting, cutting and storing of ice; ice house construction; handling, transport and marketing of ice; the use of ice in refrigeration; ice…

    • 1949-Dec

    Newsletter issued by the Vanadium Corporation of America with articles entitled "Uranium in the Colorado Plateau Area," "Bus Springs: Wellsprings of Good Will," "The Vanadium Minerals — Part II — Mineral Sources of…

    • circa 1954

    Promotional brochure for the Vanadium Corporation of America's forthcoming research center in Cambridge, Ohio circa 1954. The brochure, which includes a map of the 30,000 square foot campus, details how the new center…