Reinforced concrete bridge, c 1914.

Gardner's Patent Railway Bridge, 19th century.

The first Tay Bridge, 1878. View from the n

'Berlin' bridge near the Technikmuseum, Berlin, Germany, 2005.

Model of Gaunless Bridge, 1824.

'Great Bridge over the Severn', 1850.

Model of Gaunless Bridge with the Rocket, 1824.

Hungerford Suspension Bridge, London, c 1858.

The Forth Bridge over the Firth of Forth, 1997.

Tay Bridge, Dundee, c 1890.

Suspension bridge diagrams, 1917.

View of the Forth Bridge, January 1997.