| Description | Collected tables for one month's observations at Madras [Chennai]. Commencing with sheets headed: 'Abstract of hourly observations...' of the bifilar and vertical force magnetometers; with the thermometers attached to the bifilar and vertical force magnetometers. Including the barometer and its attached thermometer; and dry and wet bulb thermometers. Also, direction or azimuth of the wind; force of the wind; a general abstract of meteorological observations; temperature of dew point, elasticity of vapour, maximum and minimum temperature and solar and terrestrial radiation; and a register of rain and evaporation.
There are no hourly observations of the declination magnetometer, or term day observations, for February 1845.
Each monthly sheet is signed by S.O.E. Ludlow, as Superintendent of the Observatory. Verso sheets variously inscribed including [p.4]: 'Madras Hourly Observations Feb to June 1845'. |