| RefNo | MA/348/5 |
| Previous numbers | MA.348 |
| Level | Item |
| Title | Notebook of vertical force magnetometer observations made at Colaba Observatory, Bombay [Mumbai], India, by [Arthur Bedford Orlebar] |
| Creator | Orlebar; Arthur Bedford (1810-1866); British mathematician and inspector of schools |
| Date | 19 October-13 November 1841 |
| Description | Readings of changes to the vertical force of the Earth's magnetic field. Made irregularly, with columns for time, north, south, thermometer and remarks.
The front cover is inscribed: 'V.F. Magnetomet[er]'; the rear cover 'V F'. |
| Extent | 22p. [pp.8 and 18 blank] |
| Format | Manuscript |
| PhysicalDescription | Ink and pencil on paper |
| Dimensions | 160x107mm. |
| AccessStatus | Open |