| Description | Roderick Impey MURCHISON, material relating to the proofing process for the creation of his 'First Sketch of a New Geological Map of the North of Scotland' (1859), comprising 33 copies of the lithographed base map in various states such as draft colourings, many of which are annotated with corrections to the geology and text for the benefit of the engravers, [?1858]-1860, also letters from Murchison concerning the corrections, February-March 1860. Most of the sheets are numbered on the reverse indicating the chronology of the changes. |
| CustodialHistory | Confusingly, the dates of creation were previously given as being 1858-1859 to fit into the reading and publication of Murchison's paper, however the letters which are inserted chronologically within are all dated 1860. |