| RefNo | MA/251/43 | 
| Previous numbers | MA.251 | 
| Level | Item | 
| Title | Magnetic and meteorological observations at the Madras Magnetic Observatory, India, by Samuel Owen Edgar Ludlow | 
| Creator | Ludlow; Samuel Owen Edgar (d.1888); British army officer in India | 
| Date | 20-21 July 1842 | 
| Description | Hourly observations made at Madras [Chennai] of the declination, horizontal force and vertical force magnetometers, commencing from 10.00p.m. on 20 July [Gottingen Mean Time] and continuing to 9.00p.m. on 21 July 1842. With readings of the barometer and attached thermometer; dry and wet bulb thermometer; and force and direction of the wind. There are general remarks on the state of the weather. 
  Headed 'Abstract of Term-day Observations'. Signed [p.1 and p.4] 'S.O.E. Ludlow Supt'.  | 
| Extent | 4p. | 
| Format | Printed | 
| Manuscript | 
| PhysicalDescription | Ink on paper.  | 
| AccessStatus | Open |