Some new applications of the spectroheliograph
By: by George E. Hale.
Series: Contributions from the Solar Observatory, Mt. Wilson, California,; no. 18
Published: 1907
Place of publication: [Chicago
Language: eng
Subjects: Spectroheliograph.
Notes: Cover-title.
At head of title: Carnegie Institution of Washington.
Reprinted from the Astrophysical journal, vol. XXV, June 1907.