Description | Observations of vibrations on selected days of the month. Columns for date, instrument: vertical force, declination and horizontal force magnetometers; and differences.
Headed [p.1]: 'No.7 Magnetic Vibrations for October 1843' and 'checked W. Downes'. Also inscribed 'via Southampton 11 May /44'. Signed [p.15] by C.M.Elliot, with a note: 'N.B. Before these Vibrations the Box was opened and the Cobwebs removed'. |