| RefNo | AP/8/18/1 |
| Level | Item |
| Title | Unpublished manuscript, 'Boussole angulaire de Leonelli' ['Leonelli's angular compass'] by Z [Zecchini] Leonelli |
| Date | 13 August 1831 |
| Description | Leonelli describes his invention of an angular compass, designed to aid ship captains in orienting themselves when they are unfamiliar with astronomical operations for determining longitude or when the sky is cloudy and therefore their marine watches are of little use. Marginalia appear in ink.
Subject: Navigation / Geodesy
Written by Leonelli in Corfou [Corfu, Ionian Islands, Greece].
AP/8/15-18 were sent to the Royal Society together with the covering letter dated 24th April 1831, addressed to Augustus Frederick, Duke of Sussex, found at AP/8/18/3. |
| Language | French |
| Extent | 3p |
| Format | Manuscript |
| PhysicalDescription | Ink on paper |
| AccessStatus | Open |
| RelatedRecord | AP/8/15 |
| AP/8/16 |
| AP/8/17 |
| AP/8/18 |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8338 | Augustus Frederick (1773 - 1843); Duke of Sussex | 1773 - 1843 |