Optics: spectra of various substances. Colour aquatint (?) by R.H. Digeon, ca. 1868.
- Date:
- 1868
- Reference:
- 47054i
Licence: Public Domain Mark
Credit: Optics: spectra of various substances. Colour aquatint (?) by R.H. Digeon, ca. 1868. Wellcome Collection. Source: Wellcome Collection.
