Unknown (page 25)

Death Valley, California, USA, 1982-1993 Unknown

Making pots without a wheel, Nigeria, c1966 Unknown

Operator sending a message on a Morse electric printing telegraph, 1887 Unknown

Title page of Oeuvres de Pierre Curie, 1908 Unknown

Cutting coin blanks from metal strips, Royal Mint, London, 1897 Unknown

Chain pier, Brighton, Sussex, c1889 Unknown

The Engineer, 1867 Unknown

Evaporating sea water in iron pots to obtain salt, 1556 Unknown

Mesmer's tub, 1779 (1875) Unknown

Typical enlarged spleen of a Malaria patient, c1890 Unknown

Yuri Gagarin, Soviet Russian cosmonaut, 1961 Unknown

Testing the weight of gold pieces, Paris mint, 1892 Unknown

Total solar eclipse of 1860 observed from Tarragona, Spain, 1884 Unknown

Hypnosis, 1889 Unknown

Smelting of ores (gold, silver, copper and lead), 1556 Unknown

Painting a wound with an antiseptic solution, c1890 Unknown

Hermann Ludwig Ferdinand von Helmholtz, German physicist and physiologist, 1907 Unknown

The earth from space, 1968 Unknown

Transitional ship, 1886 Unknown

Georges Leopold Chretien Frederic Dagobert, Baron Cuvier, French anatomist, 19th century Unknown

Foxglove (Digitalis purpurea) (centre), c1885 Unknown

Coalman, 1826 Unknown

Packing and weighing tea for export on a Ceylon (Sri Lanka) estate, 1905 Unknown

Hydrotherapy treatments, c1902 Unknown

Cropping wool to give an even pile after nap had been raised, 1814 Unknown

Vehicles on Flooded road at Beaulieu 2008 Unknown

Car Park attendant recording car registration numbers Unknown

Busy traffic in London 1999 Unknown

M27 Motorway in poor weather Unknown

The A31 Dual Carriageway through New Forest Unknown

View through muddy windsreen on African dirt road Unknown

Traffic queue at level crossing in Brockenhurst, Hampshire Unknown

New York street,roadworks causing congestion Unknown

No Entry, Road sign Unknown

Blackfriars Bridge, London 2005 Unknown

Tyre skidmarks on road surface Unknown