| Description | Magnetic dip observations, eight in total, made using Robinson's needle no.2, on the morning and afternoon of selected days of the month. The observers are noted by initial in a separate column, including 'Major W' [Wilcox] and 'RW & GP'. With observations taken with an 18-inch altitude and azimuth circle on 21 August, 'for determining the azimuth of the Declinometer Reading Telescope'. Also included [p.2] 'Absolute determinations, coefficients, &c.', including adjustments to instruments.
Headed: 'Observatory at Lucknow. Observations of the Magnetic Dip taken during the month of August 1843'. |