On the recent secular period of the aurora borealis
By: by Denison Olmsted.
Series: Smithsonian contributions to knowledge -- v. 8, art. 3; Smithsonian Institution publication -- 81; Publication (Smithsonian Institution) -- 81.
Publisher: Smithsonian Institution
Published: 1978
Place of publication: [Washington
Language: eng
Format: Microform
Number of pages: 52
Subjects: Auroras.
Notes: Microfiche. Washington, D.C., Brookhaven Press, 1978. on no. 3 of 7 microfiches ; 11 x 15 cm.