| RefNo | AP/28/9/1 |
| Level | Item |
| Title | Unpublished manuscript, 'On the distance in time of the mean Sun from the meridian' by John George Hartley |
| Creator | Hartley; John George (fl 1846) |
| Date | October 1846 |
| Description | Hartley describes a mathematical process for calculating the distance in time of the mean Sun from the meridian. Preceded by a covering letter addressed to P M [Peter Mark] Roget.
Subject: Astronomy
Received 21 October 1846 / 29 October 1846. |
| Extent | 12p |
| Format | Manuscript |
| PhysicalDescription | Ink on paper |
| AccessStatus | Open |