Plan and longitudinal section of the Thames Tunnel, London mb-height 2514 showing three of the four

showing three of the four step buildings

top right 'How to make the most of the mud'

Sic itur ad astra'

The crowd in the foreground is watching the procession passing in front of the opticians

an allusion to his annoyance at the satires concerning his postponement of the Royal Visit to the City in 1830

Plan and longitudinal section of the Thames Tunnel, London mb-height 2514 showing three of the fourPlan and longitudinal section of the Thames Tunnel, London, 1842. The Thames Tunnel, connecting Wapping and Rotherhithe, was the first underwater tunnel in the world. Completed as a foot tunnel in 1843, it was converted to a railway tunnel for the East London Railway in the 1860s. The plan is signed by the engineer, Sir Marc Isambard Brunel.