Spectrum analysis in its application to terrestrial substances, and the physical constitution of the heavenly bodies / familiarly explained by H. Schellen ; translated from the second enlarged and revised German edition by Jane and Caroline Lassell ; edited with notes by William Huggins ; with numerous woodcuts and coloured plates, and Ångström's and Kirchhoff's maps.
A popular scientific treatise on spectrum analysis by the German schoolmaster Heinrich Schellen, translated by Jane and Caroline Lassell and annotated by William Huggins for English readers in 1872. Wood engravings pair optical-bench diagrams of prisms, lenses and ray paths with dense black plates of eclipsed suns, coronas and banded spectra, offering high-contrast line work and inverted white-on-black fields.
