| Description | Richard John NELSON, first geological map of Jersey, [c.1828]. Geological colouring and explanation on base map 'The island of Jersey, as divided into parishes and vingtaines or cantons', scale 1 inch to 1 mile, published, 1825. Foldout, manuscript key in another hand. |
| Administrative History | The map, which was the first geological map of the island, was prepared for inclusion in Nelson's paper "Geological survey of the island of Jersey", Quarterly Journal of Science, Literature and the Arts, vol 6 (1829) p.359-378, but was never published. |