Design for a diving bell Product:Postcard which the Duke of Portland

which the Duke of Portland is handing to them

View of the Castle Tavern

Sir Michael Hicks Beach and

and the Church of St Helen

Design for a diving bell Product:Postcard which the Duke of PortlandUnpublished plate from a paper on the art of diving by Anthony Fothergill FRS (1737 1813) and Granville Sharp. Submitted to Dr William Watson for publication in the Philosophical Transactions of the Royal Society, but not printed. The scheme shows an upturned boat with a single passenger. The boat is held in a wooden frame and a weighted rope is passed through its keel. By operating a pulley system, the diver supposedly can raise and lower the