The theory of ionization and the sun-spot spectrum
By: by Henry Norris Russell ...
Series: Contributions from the Mount Wilson Observatory.; no. 225
Published: 1922
Place of publication: [Chicago
Language: eng
Number of pages: 26
Subjects: Ionization.; Sunspots.
Notes: Cover-title.
At head of title: Carnegie Insitution of Washington.
"Reprinted from the Astrophysical Journal, vol. LV, 1922."