| Description | Hourly observations made at the Royal Observatory [Tarewali Kothi] at Lucknow, Uttar Pradesh, of the declination, horizontal force, and vertical force magnetometers, commencing from 10.00p.m. on 24 January [Gottingen Mean Time] and continuing to 9.00p.m. on 25 January 1844. With readings of the barometer [height and temperature], dry and wet thermometer. Columns for the state of the weather and for electrometer readings are blank.
Headed 'Abstract of Term-day Observations...'. With a note [p.4]: 'Received May 7 1845 and acknowledged both to Lt Col Wilcox and to the Sec HEIC in London J.F.W.H.' [John Frederick William Herschel]. |