Title Spectrum analysis in its application to terrestrial substances, and the physical constitution of the heavenly bodies. [electronic resource] Familiarly explained by Dr. H. Schellen ... Tr. from the 2d enl. and rev. German ed. by Jane and Caroline Lassell. Ed. with notes, by William Huggins ... With numerous woodcuts and coloured plates; also Angstroem's and Kirchhoff's maps.