| Description | Observations of vibrations on selected days of the month. Columns for date, instrument: vertical force, declination and horizontal force magnetometers; and differences. A note [p.3] records that: 'Vertical Force Magnetometer...no great change having taken place all day, the box was opened and a large cobweb removed...'
Headed [p.1]: 'Magnetic Vibrations for February 1844'. Signed [p.8] by C.M.Elliot. |