Optics: spectra of various substances. Colour aquatint (?) by R.H. Digeon, ca. 1868.

    Date:
    1868
    Reference:
    47054i
    Catalogue details

    Licence: Public Domain Mark

    Credit: Optics: spectra of various substances. Colour aquatint (?) by R.H. Digeon, ca. 1868. Wellcome Collection. Source: Wellcome Collection.

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