| Description | Hourly observations made at the Royal Observatory [Tarewali Kothi] at Lucknow, Uttar Pradesh, of the declination and horizontal force magnetometers, commencing from 10.00p.m. on 21 July [Gottingen Mean Time] and continuing to 9.00p.m. on 22 July 1842. With readings of the barometer [height and temperature], dry and wet thermometer, and state of the weather, with wind direction. A column for electrometer readings is blank. A few horizontal force readings were not taken, with the inscribed explanation 'The vertical wire of Reading Telescope was found broken'.
Headed 'Abstract of Term-day Observations...'. Inscribed [p.4]: 'Lucknow July - 1842'. |