| Description | Tables of bifilar magnetometer readings, taken at two minute intervals, 14-15 April 1845. Readings and means are recorded against Singapore Observatory time and Gottingen mean time. Columns for declination and a vertical force magnetometer are not completed. With some readings of the attached thermometer, barometer, dry and wet bulb thermometers standard thermometer and notes on cloudy skies.
Headed [p.1]: 'Disturbance of the Bifilar Magnetometer observed on the 14th & 15th April 1845 Magnetic Observatory Singapore'. Signed [p.4] by C.M. Elliot. |