- 1A collection of manuscript and printed material principally relating to the work of Joshua Field as a partner in the engineering firm of Maudslay, Sons and Field. (FIELD)
1805-1869, fonds - 2Observations taken at a small water mill at Hitchin by Joshua Field (MS/1275)
1809-09-14, fonds - 3Notes concerning durability of cast iron waggons and wheels (MS/1292)
1830-02-16, fonds - 4Notebook comprising 'Account of Blaenavon Iron Works' (MS/0450)
1817, fonds
