| Description | Table of daily observations of deflection, in two series, made at the Singapore Observatory. Columns for date, hour of observation, angle of deflection at 5 feet, angle of deflection at 6.666 feet, horizontal intensity instrument, thermometer, corrected scale reading [not completed], and number of observation.
Headed [p.1 and repeated p.2]: 'Observations of Deflection to determine the Horizontal Intensity between the months of July and November 1843'. Signed [p.1] by C.M. Elliot. |