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    • Fashion Shades
    • Couleurs Mode
    • Undated

    Sample book with dyeing instructions and 32 mounted fabric samples.

    • 1927

    Sample book for Naphtol AS dyes, used for "embroidery purposes, for effects in silk, woollen and cotton clothes, for curtains, underwear made of artificial silk, etc." Contains dyeing instructions and 70 mounted dyed…

    • 1947-Apr-09 – 1947-May-26

    Illustrated catalog for a Pasteur Exhibition at the Science Museum in South Kensington, England, April 9th through May 26th, 1947. Exhibition originally shown in Paris, France, with added contributions from the Wellcome…

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

    Moisture and milk testers for determining fat and total solids in milk and dairy products according to the Mojonnier process.

    • Part of Catalog of Laboratory Apparatus and Reagents for Industrial—Medical—Educational Laboratories
    • 1922
    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Instrument that measures the wavelengths of light through a chemical sample. Can be used to determine elements in a sample when different elements emit different wavelengths of light. Illustrated instrument made by…

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Spectroscopes use a lens or prism to disperse light into wavelengths. The spectroscopes shown can be handheld (top image) or attached to a camera (bottom image) to record the observation.

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Instruments designed for photometric analysis. Photometers can be used to measure the presence and concentration of organic and inorganic compounds in solution by determining the absorbance of specific wavelengths of…

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Wave apparatuses for the study of transverse and longitudinal waves.

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    Instruments for measuring both voltage and amperes of direct electric current.

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    "Parsons' latest improved design, for controlling incandescent lighting circuits, and for demonstrating the laws of series and parallel combinations."

    • Part of Catalog K: Physical Apparatus for Universities and Colleges
    • 1912-May

    From page 97: "These cells show the extraordinary property which selenium possesses of changing its electrical resistance under the influence of light."