Spectrum analysis in its application to terrestrial substances, and the physical constitution of the heavenly bodies / Familiarly explained by the late H. Schellen. Trans. from the 3d enl. and revised German edition by Jane and Caroline Lassell.

Licence: Public Domain Mark

Credit: Spectrum analysis in its application to terrestrial substances, and the physical constitution of the heavenly bodies / Familiarly explained by the late H. Schellen. Trans. from the 3d enl. and revised German edition by Jane and Caroline Lassell. Source: Wellcome Collection.