| Description | Observations of magnetic dip made using Lloyd's needles A1 and A2 at the 'Shed near Observatory'. Columns for marked end, limb, north and south direct, north and south reverse, with sums and means. Some observations not dated, others crossed through.
Inscribed [p.1]: 'Magnetic Dip for September 1844'. Signed [p.42] by C.M. Elliot, with a note on methods of vibration and direct observation. |