Some recent contributions to our knowledge of the sun
By: by George E. Hale.
Series: Smithsonian miscellaneous collections -- v. 52, art. 23; Publication -- 1865; Publication (Smithsonian Institution) -- 1865.
Publisher: Smithsonian Institution
Published: 1910
Place of publication: Washington
Language: eng
Number of pages: 360
Subjects: Mount Wilson Observatory.; Sun.
Notes: "Lexture delivered at Washington, D.C., April 22, 1908, under the auspices of the Hamilton fund of the Smithsonian Institution"--P. 331.

Reprint. Originally published May 8, 1909.