A photographic comparison of the spectra of the limb and the center of the sun
By: by George E. Hale and Walter S. Adams.
Contributors: Adams, Walter Sydney, 1876-1956, joint author.
Series: Contributions from the Solar Observatory, Mt. Wilson, California,; no. 17
Published: 1907
Place of publication: [Chicago
Language: eng
Number of pages: 11
Subjects: Spectrum, Solar.
Notes: Cover-title.
At head of title: Carnegie Institution of Washington.
Reprinted from the Astrophysical journal, vol. XXV, June 1907.