| Description | Monthly summaries made at the Magnetic Observatory at Trivandrum [Thiruvananthapuram], Kerala, of absolute determinations of declination, horizontal force, inclination or dip, with a brief general note on the weather. The final sheet [p.14] contains an abstract of daily term observations of the vertical force magnetometer, 1-3 December 1841.
Each monthly sheet is signed: 'Jno. Caldecott'. |