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Sketches illustrating the theory of the proportions of the human figure, c1472-c1519 (1883). Artist: Leonardo da Vinci.
 
Two drawings illustrating the theory of the proportions of the human figure, c1472-c1519 (1883). Artist: Leonardo da Vinci.
 
Two drawings illustrating the theory of the proportions of the human figure, c1472-c1519 (1883). Artist: Leonardo da Vinci.
 
Two drawings illustrating the theory of the proportions of the human figure, c1472-c1519 (1883). Artist: Leonardo da Vinci.
 
Drawing illustrating the theory of the proportions of the human figure, c1472-c1519 (1883). Artist: Leonardo da Vinci.
 
Drawings showing the movements of the human figure and warriors fighting, c1472-c1519 (1883). Artist: Leonardo da Vinci.
 
Four drawings illustrating the theory of the movements of the human figure, c1472-c1519 (1883). Artist: Leonardo da Vinci.
 
Four drawings illustrating the theory of the movements of the human figure, c1472-c1519 (1883). Artist: Leonardo da Vinci.
 
Three drawings illustrating the theory of the movements of the human figure, c1472-c1519 (1883). Artist: Leonardo da Vinci.
 
Five drawings illustrating the elements of landscape painting, c1472-c1519 (1883). Artist: Leonardo da Vinci.
 
Five drawings illustrating the elements of landscape painting, c1472-c1519 (1883). Artist: Leonardo da Vinci.
 
Four drawings illustrating the practice of painting, c1472-c1519 (1883). Artist: Leonardo da Vinci.
 
Drawing of a male head, illustrating the practice of painting, c1472-c1519 (1883). Artist: Leonardo da Vinci.
 
Three drawings, c1472-c1519 (1883). Artist: Leonardo da Vinci.
 
Five drawings illustrating the theory of painting, c1472-c1519 (1883). Artist: Leonardo da Vinci.
 
Diagrams illustrating the theories of linear perspective and of light and shade, c1472-c1519 (1883). Artist: Leonardo da Vinci.
 
Pythagoras (c560 - 480 BC), Greek philosopher and scientist. Artist: Unknown
 
Representation of an Aristotelian Theory of Consciousness (From: De corpore et anima). Artist: Anonymous
 
Charles Darwin (1809-1882), British naturalist, 1924. Artist: Unknown
 
There can be no revolutionary movement without a revolutionary theory (Poster), 1927. Artist: Klutsis, Gustav (1895-1938)
 
Detail of the Elgin Marbles, 5th century BC. Artist: Unknown
 
Nikolay Ivanovich Turgenev, Russian author, c1860-c1864. Artist: Unknown
 
Charles Darwin, British naturalist, c1860s-c1870s. Artist: Ernst Hader
 
Thomas Henry Huxley (1825-1895), English biologist, 1890.  Artist: W&D Downey
 
Thomas Henry Huxley, English biologist, c1890.Artist: Cassell, Petter & Galpin
 
Leonhard Euler, 18th century Swiss mathematician and physicist, (1804).Artist: J Chapman
 
Charles Darwin, 1878.Artist: Lock & Whitfield
 
Warren de la Rue, British astronomer and physicist, 1882.Artist: Lock & Whitfield
 
Professor Edward Frankland, 1880.Artist: Lock & Whitfield
 
Letter from Sir Issac Newton to William Briggs, 20th June 1682.Artist: Isaac Newton
 
Blaise Pascal, French philosopher, mathematician, physicist and theologian, (1833). Artist: H Meyer
 
John Hunter, Scottish surgeon, (1834).Artist: W Holl
 
Charles Darwin, British naturalist, (1899).Artist: C Cook
 
Charles Darwin, renowned naturalist and thinker, (1900) Artist: Unknown
 
Joseph Black, Scottish physicist and chemist, (1870).Artist: J Rogers
 
John Hunter, Scottish surgeon, 1870.Artist: Francis Holl
 
Jean Bernoulli, Swiss mathematician, 1762. Artist: Unknown
 
Jean Bernoulli, Swiss mathematician, c1750. Artist: Unknown
 
William Thomson, Lord Kelvin in 1869 (c1890).  Artist: Anon
 
'Buffon', 19th century. Artist: Hart
 
'Bossuet', 19th century. Artist: Richard Woodman
 
Hans Christian Oersted, Danish physicist, 1820 (c1880). Artist: Unknown
 
George-Louis Leclerc, Comte de Buffon, 18th century French naturalist, c1890. Artist: Unknown
 
HMS 'Beagle' laid ashore, Rio Santa Cruz, Patagonia, South America, 1834 (1839). Artist: Unknown
 
Giraffes browsing, c1885. Artist: Unknown
 
'Gulielmus Hogarth', 19th century. Artist: James Mollison
 
Joseph Black, Scottish chemist, 1787. Artist: John Kay
 
Joseph Black, Scottish chemist, 1787. Artist: John Kay
 
'A Court for King Cholera', 1852. Artist: Unknown
 
Thomas Henry Huxley, British biologist, c1870s. Artist: Unknown
 
Albert Einstein, German-Swiss mathematician and theoretical physicist, c1930s. Artist: Unknown
 
Lord Kelvin, Irish-born Scottish mathematician and physicist, c1900. Artist: Anon
 
Thomas Young, English physician, physicist and Egyptologist, 1881. Artist: Anon
 
Max Planck, German theoretical physicist, mid 20th century. Artist: Unknown
 
Louis Pasteur, French microbiologist and chemist, 19th century. Artist: Unknown
 
Ferdinand Brunetiere, French writer and critic, late 19th century. Artist: Unknown
 
George Constantinescu, Romanian scientist, engineer and inventor, (c1924). Artist: Unknown
 
Stephen William Hawking (b.1942), British theoretical physicist. Artist: Unknown
 
Pythagoras (c560 - 480 BC), Greek philosopher and scientist. Artist: Unknown
 
Pythagoras (560-480 BC), Greek philosopher and scientist, demonstrating mathematical relationships. Artist: Unknown