The periodometer
Subtitle: an instrument for finding and evaluating periodicities in long series of observations (with one plate)
By: by C. G. Abbot.
Contributors: Smithsonian Institution. Research Corporation Fund.
Series: Smithsonian miscellaneous collections -- v. 87, no. 4; Publication -- 3138; Publication (Smithsonian Institution) -- 3138.
Publisher: Smithsonian Institution
Published: 1932
Place of publication: City of Washington
Language: eng
Subjects: Periodometer.; Solar radiation.
Notes: At head of title: Research Corporation Fund.