File:Optics; spectra of various substances. Coloured process prin Wellcome V0025369.jpg

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Optics: spectra of various substances. Coloured process prin
Title
Optics: spectra of various substances. Coloured process prin
Description
Français : Spectres de diverses sources lumineuses, solaire, stellaires, métalliques, gazeuses, électrique
English: Optics: spectra of various substances. Coloured process print by R.H. Digeon, n.d. [c. 1868].

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current03:13, 3 November 2014Thumbnail for version as of 03:13, 3 November 20143,249 × 2,164 (2.65 MB)Fæ (talk | contribs)=={{int:filedesc}}== {{Artwork |artist = |author = |title = Optics: spectra of various substances. Coloured process prin |description = Optics: spectra of various substances. Coloured process print by R.H. Di...

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