The sun and the welfare of man
By: by Charles Greeley Abbot.
Series: Smithsonian Institution Smithsonian series -- v.2
Publisher: Smithsonian Institution Series, Inc.
Published: 1938
Place of publication: [New York
Language: eng
Number of pages: 342
Subjects: Smithsonian Astrophysical Observatory; Solar radiation; Spectrum, Solar; Astrophysics