Design for a diving bell Size:XL: 120 x 80cm Cassius Clay (Muhammad Ali) laughing

Cassius Clay (Muhammad Ali) laughing into microphone

With figures

with figures in the foreground

Guildhall Council Chamber

Design for a diving bell Size:XL: 120 x 80cm Cassius Clay (Muhammad Ali) laughingUnpublished 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