Hourly magnetical observations made at the Madras Observatory
Subtitle: from January 1856 to February 1861.
Contributors: Madras Observatory (India)
Publisher: [s.n.]
Published: 1893
Place of publication: Madras
Language: eng
Number of pages: 299
Subjects: Geomagnetism -- Observations.
Notes: Published by order of the Madras Government.