| Description | Graphical curves of term day observations made at Trivandrum [Thiruvananthapuram], Kerala. Each sheet contains a single day of observations, 10.00pm to 10.00pm of the declination, horizontal force, and vertical force magnetometers, with readings of the thermometers of the vertical and horizontal force magnetometers. This is followed by curves showing values for the tension of vapour, barometer and attached thermometer, calculated dew point, and wet and dry thermometers [variable ordering in the binding].
Each sheet is headed: 'Term Day Observations - Trenadrium Observatory', with latitude and longitude, and the date. Several graphs [p.13, p.16, p.18] are signed 'Drawn by G. Coorien'; others [p.19, p.21] 'Drawn by A. Itee'. Presumably both were assistants or calculators at the observatory. |