Optics- crystals exhibiting interference colours. Coloured mezzotint [?] by R.H. Digeon, ca. 1883, after J. Silbermann - from our story 'Le Monde Physique : Illustrating Scientific Phenomena Beautifully (1881)'

Optics- crystals exhibiting interference colours. Coloured mezzotint [?] by R.H. Digeon, ca. 1883, after J. Silbermann

Optics- crystals exhibiting interference colours. Coloured mezzotint [?] by R.H. Digeon, ca. 1883, after J. Silbermann

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