| PhysicalDescription | Ink on paper. Purple cloth binding with spine gilding 'Madras Observations MS. 1841.'
Data rescue available:
Allan, R.J., Reason, C.J.C., Carroll, P. and Jones, P.D. (2002), A reconstruction of Madras (Chennai) mean sea-level pressure using instrumental records from the late 18th and early 19th centuries. Int. J. Climatol., 22: 1119-1142. |
| Place origin | Madras Magnetic Observatory, [Chennai], India |