| Description | Tables of dip observations, organised by month, with eight or nine observing days per month, with means, and an abstract of dip observations.
Headed [p.1]: 'Observations of the Dip of the Needle taken at Madras Magnetic Observatory during the year 1843. Needle used No.2 (New) by Robinson. North Pole always dips'. Signed [p.7]: 'S.O.E. Ludlow Supt. Magl. Obsy. Madras'. |