Optics: spectra of various gases. Colour aquatint by R.H. Digeon, ca. 1883.

    Date:
    1883
    Reference:
    47498i

    Licence: Public Domain Mark

    Credit: Optics: spectra of various gases. Colour aquatint by R.H. Digeon, ca. 1883. Wellcome Collection. Source: Wellcome Collection.

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