Ten years' work of a mountain observatory
Subtitle: a brief account of the Mount Wilson solar observatory of the Carnegie institution of Washington
By: by George Ellery Hale.
Series: Carnegie Institution of Washington publication -- no. 235; Carnegie Institution of Washington publication -- no. 235.
Publisher: Carnegie institution of Washington
Published: 1915
Place of publication: Washington, D.C
Language: eng
Number of pages: 98
Subjects: Mount Wilson Observatory.