Influence of planetary configurations upon the frequency of visible sun spots
By: by Fernando Sanford.
Contributors: Smithsonian Institution. Arthur Fund.
Series: Smithsonian miscellaneous collections.; v. 95, no. 11
Publisher: The Smithsonian Institution
Published: 1936
Place of publication: City of Washington
Language: eng
Subjects: Sunspots.
Notes: Publication 3391.
At head of title: Arthur Fund.