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    • 1955-May-13

    Letter between Robert S. Mulliken and Harrison Shull, American quantum chemists, concerning a reprint on wave functions sent by Mulliken to Shull.

    • 1955-May-18

    Letter between Harrison Shull and Robert S. Mulliken, American quantum chemists, concerning proposed visit of Shull to Cambridge, as well as the results of some of Shull's recent work.

    • 1955-Jun-24

    Letter between Robert S. Mulliken and Harrison Shull, American quantum chemists, concerning instructions for a colleague to obtain a travel visa.

    • 1955

    In 1955, the Los Angeles Chamber of Commerce visited Denmark, Norway, Sweden, Germany, Switzerland, France, and England to promote Southern California to European politicians and industrialists.

    Identified individuals…

    • 1955

    The questionnaire results identified pH meter features that would broadly appeal to biologists.

    Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who…

    • 1955

    The respondents answered questions about the technical capabilities of centrifuges in their institutions, and also offered additional commentary.

    Beckman Instruments began producing centrifuges after their January 1,…

    • 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…

    • 1923 (Date of publication)
    • 1850 (Date of sitting)

    Half-length photographic portrait of William Crookes seated next to a table containing a scientific instrument. Taken at age 18 when Crookes was August Wilhelm von Hofmann's assistant.

    Plate from the biography of Sir…

    • 1923 (Date of publication)
    • 1856 (Date of sitting)

    Half-length photographic portrait of William Crookes taken in 1856, when sitter was 24 years old.

    Plate from the biography of Sir William Crookes, a British chemist and physicist known for his work on spectroscopy. He…

    • 1923 (Date of publication)
    • 1889 (Date of sitting)

    Half-length photographic portrait of William Crookes taken in 1889, when sitter was 57 years old.

    Plate from the biography of Sir William Crookes, a British chemist and physicist known for his work on spectroscopy. He…

    • 1923 (Date of publication)
    • 1911 (Date of sitting)

    Portrait photograph frontispiece of Sir William Crookes taken in 1911, when sitter was 79 years old.

    Plate from the biography of Sir William Crookes, a British chemist and physicist known for his work on spectroscopy.…

    • With a foreword by Sir Oliver Lodge
    • 1923

    Biography of Sir William Crookes, a British chemist and physicist known for his work on spectroscopy. He notably discovered thallium and conducted experiments on the properties of highly rarified gases, rare earth…

    • 1922

    Photographic reproductions of parabolas illustrate typical positive ray parabolas, multiply charged parabolas of mercury as well as parabolas of neon and lithium.

    Digitized in entirety, this work on isotopes covers…

    • 1922

    Digitized in entirety, this work on isotopes covers topics including radioactive isotopes, positive rays, neon, the mass spectrograph, analysis of the elements, electrical theory of matter, atomic numbers, spectra and…

    • 1922

    Mass spectra illustration depicts an analysis of elements including mercury, boron, bromine, sulphur, and phosphorus.

    Digitized in entirety, this work on isotopes covers topics including radioactive isotopes, positive…

    • 1922

    Mass spectra illustration depicts an analysis of elements including neon, chlorine, argon, and krypton.

    Digitized in entirety, this work on isotopes covers topics including radioactive isotopes, positive rays, neon,…

    • 1922

    Photographic reproduction of the original mass spectrograph set up in the Cavendish Laboratory in 1919 includes a lettered key outlining the components of the instrument.

    Digitized in entirety, this work on isotopes…