Letter from Robert Young Pickering, Conheath, Dumfries to Robert Young, Haywards Heath

Glad that Robert Young’s book is for ‘the layman’ a more technical paper will be presented to the Newcomen Society; discusses how Sir Goldsworthy Gurney was the inventor of the ‘steam blast/jet’ which was applied on steamboats and locomotives; are there letters showing connection between Hackworth and Gurney?; encloses letters and John Glass's address (not present).