| Reference number | MS/257/1/291 |
| Alternative reference number | Sa.291 |
| Previous numbers | ES1/45/282-291 |
| Level | Item |
| Title | Tables depicting the elastic force and humidity at the Cape of Good Hope Observatory |
| Date | [1841-1846] |
| Description | Includes two tables depicting the mean elastic force of the vapour, and the mean degree of the humidity of the air from 1841 to June 1846 inclusive. |
| Extent | 2p |
| Format | Manuscript |
| Physical description | Ink on paper |
| Access status | Open |