| Description | Rough geological colouring with ms notes by George Bellas Greenough, [1831-1840] on base map 'A New and Correct Map of the County of Northumberland', by A & M Armstrong, published by Laurie and Whittle, 1796. Greenough no.264. Scale-1:200,000. Dissected on cloth in case, 66.5 x 49cm. |
| Administrative History | The latest bibliographic reference cited on the map is from the 'Transactions of the Natural History Society of Northumberland, Durham and Newcastle upon Tyne', vol 1 (1831), but another is Nathaniel Winch's "Observations on the Geology of Northumberland and Durham", 'Transactions of the Geological Society of London', S1, vol 4 (1817), pp1-101.
The map is likely to have formed part of the research for the second edition of Greenough's 'Geological Map of England & Wales' (1840). |