Description | Tables of horizontal and declination magnetometer readings, taken at two minute intervals, 25-26 July 1843, noted against Gottingen mean time and Singapore mean time.
Headed [p.1]: 'Extraordinary Observations of the Three Magnetometers...'. Signed [p.11] by C.M. Elliot. Inscribed [p.12]: 'Extraorinary Observans. July 1843' and 'Magnetic Observations Singapore July 1843'. |