Scottish letters patent granted to Thomas Farmer for obtaining sulphur, sulphurous acid and other products from pyrites
Letters patent granted to Thomas Farmer for 'Improvements in treating Pyrites to obtain Sulphur, Sulphurous Acid and other products'
Letters patent granted to Thomas Clarke and John Varley for 'An improvement on the atmospheric system of propulsion which is also applicable to other motive purposes'
Sketch books of drawings of fragments recovered from the shipwrecks of the Royal George and the Edgar
Manuscript entitled: "Catalogue of the Apparatus of Philosophical Instruments, in the Collection of Her Late Majesty Queen Charlotte, at the Observatory at Richmond in Surrey"
Stepping No. 1 on or in central wheels. Figure 1. Figure 2. Various unnumbered elevations, plans and details.
A letter from Davies Giddy advising Richard Trevithick on his future course of action following the failure of a claim for government assistance
Receipts and charges for various accounts and goods plus lists of addresses and of fruit trees planted by A. Parkes
A letter from Brunel to Monsieur D'avannes, commenting on the working conditions, accident and health records of the workforce at the Thames Tunnel