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Details
ANGSTRÖM, Anders Jonas (1814-1874). Recherches sur le Spectre Solaire. Uppsala: W. Schultz, 1868.
2 volumes, comprising: Text: (308 x 240 mm). Frontispiece. Original brown printed wrappers. Atlas: (326 x 508 mm). 6 plates by Robert Thalén (1827-1905), Angström's laboratory assistant, with separate title. Loose in original brown printed wrapper (small skilful repairs to spine and extremities); together in cloth folding case.
FIRST EDITION. The classic work on the solar system in which Angström demonstrated the presence of hydrogen and a number of other elements in the sun. Solar spectroscopy provided the first scientific evidence (other than the occasional meteorite) that the elements known on earth are also present elsewhere in the universe. Angström also established a scale of wave-lengths for measuring spectral lines, replacing Kirchoff's arbitrary scale. Angström's system was based on a unit of one ten millionth of a millimetre, named the "Angstrom unit" in his honor. DSB p. 166; Norman 56. AN EXCEPTIONALLY FINE COPY.
[With:]
ANGSTRÖM, Anders Jonas. Recherches sur le Spectre Solaire. Uppsala: W. Schultz; Berlin: Ferd. Dümmler, 1869. 2o (290 x 225 mm). Frontispiece, six folding plates tipped-in at end (some spotting, a few pale stains, one or two short tears, and surface abrasions to versos). (One or two spots and some offsetting.) Late 19th-century quarter cloth, marbled boards. Provenance: scholarly annotations to text and plates throughout. A re-issue with the slip "Berlin: Ferd Dümmler, 1869" pasted beneath the original imprint on the title-page. (3)
2 volumes, comprising: Text: (308 x 240 mm). Frontispiece. Original brown printed wrappers. Atlas: (326 x 508 mm). 6 plates by Robert Thalén (1827-1905), Angström's laboratory assistant, with separate title. Loose in original brown printed wrapper (small skilful repairs to spine and extremities); together in cloth folding case.
FIRST EDITION. The classic work on the solar system in which Angström demonstrated the presence of hydrogen and a number of other elements in the sun. Solar spectroscopy provided the first scientific evidence (other than the occasional meteorite) that the elements known on earth are also present elsewhere in the universe. Angström also established a scale of wave-lengths for measuring spectral lines, replacing Kirchoff's arbitrary scale. Angström's system was based on a unit of one ten millionth of a millimetre, named the "Angstrom unit" in his honor. DSB p. 166; Norman 56. AN EXCEPTIONALLY FINE COPY.
[With:]
ANGSTRÖM, Anders Jonas. Recherches sur le Spectre Solaire. Uppsala: W. Schultz; Berlin: Ferd. Dümmler, 1869. 2o (290 x 225 mm). Frontispiece, six folding plates tipped-in at end (some spotting, a few pale stains, one or two short tears, and surface abrasions to versos). (One or two spots and some offsetting.) Late 19th-century quarter cloth, marbled boards. Provenance: scholarly annotations to text and plates throughout. A re-issue with the slip "Berlin: Ferd Dümmler, 1869" pasted beneath the original imprint on the title-page. (3)