| Description | '1804.' (This item is a small hardback notebook with a green cover. On the cover is written the preceding inscription. The notebook contains observations, calculations and diagrams relating to various subjects. Within the notebook there is a copy of a notice, written in an unknown hand and headed 'Improved & Simplified Patent Steam Engine.' Annexed is a copy of a letter, written in the same hand and headed; 'Extract of a letter from Mr R. Trevithick, one of the patentees of the new improved Steam Engine, to Mr John Whinfield, Gateshead.') |