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Subject Microscopes Remove constraint Subject: Microscopes

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    • 1938 – 1960

    Green wooden case with textured green paper surface; label on front of case features a young boy looking through a microscope and an enlarged image of a dog flea; metal latch opens double-sided interior. 16 glass test…

    • 1960 – 1969

    White metal case with color graphic of two young boys using the Gilbert microscope set. Case opens on a hinge. Inside, a blue styrofoam tray holds a plastic microscope, an electric plug-in light, an objective lens, a…

    • 1954

    General view of chemist Bernie Thiegs working with various specimens at the Dow Chemical Company's Agricultural Chemical Research and Development Laboratory facilities. Per an article in the August 1941 edition of the

    • 1914

    Cover and illustrated color plates from the 3rd edition of The microscopy of drinking water by George Chandler Whipple. Per the author, the book is designed to serve as a guide for the water analyst and water-works…

    • 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…

    • 1880 – 1890

    Black metal (iron) U-shaped base with cylindrical brass (plated) parts; two metal slide clips mounted to slide plate; rotatable eye piece lowered or raised by the adjustment of top right knob; circular mirror underneath…

    • circa 1890

    Small brass microscope likely dating from the last quarter of the 19th century; no maker's name or other identifying marks; rests on a circular stand; body of scope connected to base stand by a hinge that allows the…

    • circa 1946

    A: Microscope
    Ernst Leitz oil-immersion microscope; instrument rests on wishbone-shaped base with a single beam extending from the center before splitting into two sections: an arm supporting the telescope and…

    • 1926-Apr

    Two views of Dr. F.E. Allison studying the fixation of nitrogen by bacteria at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C.

    The Fixed Nitrogen Research Laboratory…

    • after 1920

    Chemistry sets reached their heyday in the 1950s, but production of them began in the United States during World War I. Playing with a toy chemistry set inspired many a boy to become a chemist, and not until the late…

    • Part of Catalog of Laboratory Apparatus and Reagents for Industrial—Medical—Educational Laboratories
    • 1922
    • Part of Catalog of Laboratory Apparatus and Reagents for Industrial—Medical—Educational Laboratories
    • 1922

    Combination of photomicrographic camera and metallurgical microscope.

    • Part of Catalog of Laboratory Apparatus and Reagents for Industrial—Medical—Educational Laboratories
    • 1922
    • Part of Preis-Verzeichnis über Apparate und Gerätschaften für alle Laboratoriums-Arbeiten im Gebiet der Biochemie [Price-List on Apparatuses and Equipment for All Laboratory Work in the Fields of Biochemistry]
    • 1913

    Microscope with achromatic objectives and Huygens eyepieces. Assembled with the "No. 2b" stand, for medium microscopes with lighting unit.

    • Part of Preis-Verzeichnis über Apparate und Gerätschaften für alle Laboratoriums-Arbeiten im Gebiet der Biochemie [Price-List on Apparatuses and Equipment for All Laboratory Work in the Fields of Biochemistry]
    • 1913

    Microscope with achromatic objectives. Assembled with the "No. 1" stand, for large microscopes.

    • Part of Preis-Verzeichnis über Apparate und Gerätschaften für alle Laboratoriums-Arbeiten im Gebiet der Biochemie [Price-List on Apparatuses and Equipment for All Laboratory Work in the Fields of Biochemistry]
    • 1913

    Oil immersion microscopes with various components and of different sizes.

    • Part of Preis-Verzeichnis über Apparate und Gerätschaften für alle Laboratoriums-Arbeiten im Gebiet der Biochemie [Price-List on Apparatuses and Equipment for All Laboratory Work in the Fields of Biochemistry]
    • 1913

    Two microscopes with choices of various components for complete assembly.

    B 5095. Sufficient for most bacteriological, histological, botanical, and zoological investigations.
    B 5099. For bacteriological work (equipment…

    • 1952

    General view of two technicians using an electron microscope in the Dow Chemical Company's Metallurgical Laboratory. Electron microscopes use a beam of accelerated electrons as a source of illumination and have a higher…

    • circa 1952

    General view of a technician using a microscope to examine a specimen in the Dow Chemical Company's Metallurgy Laboratory.

    • 1950s – circa

    General view of Clyde Moe operating an electron microscope in the Dow Chemical Company's Metallurgical Laboratory. Electron microscopes use a beam of accelerated electrons as a source of illumination and have a higher…

    • 1955

    View of a technician performing a metallographic examination of metals and alloys in the Naval Air Materials Center's Aeronautical Materials Laboratory. Metallography is the study of the physical structure and…

    • 1958

    General view of the electron microscope used in the Naval Air Material Center's Aeronautical Materials Laboratory. Electron microscopes use a beam of accelerated electrons as a source of illumination and have a higher…

    • Part of Instruments of Precision Laboratory Apparatus, M-L Catalog
    • 1911

    An "instrument intended for measuring spectra photographs, gratings, divided scales, or such objects which can be focused by the microscope and will allow rapid measurements of the highest possible accuracy." The design…