Thomas Henry Huxley, James Paradis
1935 · Very good
€25
Herbert Spencer
1894 · Very good
€185
Peter Kropotkin
1925 · Very good
€35
Elie Metchnikoff
1903 · Very good
€35
Joseph Le Conte
1928 · Very good
€30
Alpheus S. Packard
1906 · Fine
€100
John Crombie Brown
1893 · Very good
€165
Jean Baptiste Pierre Antoine de Monet de Lamarck
1811 · Very good
€100
Aristotle
1590 · Fine
€3,425
Emile Ferrière
1909 · Fine · NL
€115
Friedrich Nietzsche
1898 · Fine
€90
Charles Darwin
1909 · Fine
€90
Charles Hamilton Smith
1850 · Very good
€60
Larry L. Mai
1925 · Very good
€65
Erasmus Darwin
1808 · Fine
€280
Ralph Cudworth
1703 · Very good
€540
Patrick A. Finney
1935 · Very good
€60
William Wollaston, William Wollaston
1754 · Fine
€325
John Oakesmith
1910 · Very good
€50
Giordano Bruno, L. Williams
1912 · Very good
€110
John Wolley, John Wooley
1899 · Very good
€190
Claude Bernard
1870 · Very good
€130
Seneca the Younger
1634 · Very good
€1,210
Charles Darwin
1884 · Very good
€100
Erasmus Darwin
1837 · Very good
€105
Immanuel Kant, Alain Renaut
1807 · Very good
€330
Epictetus
1657 · Fine
€2,875
Thomas Henry Huxley
1897 · Fine
€135
Alfred Russel Wallace
1935 · Fine
€35
John George Wood
1896 · Very good
€200
Thomas Low Nichols
1854 · Very good
€140
David Attenborough
1711 · Very good
€245
John Fiske
1894 · Very good
€60
Josiah Royce
1902 · Very good
€30
Thomas Browne
1652 · Very good
€1,335
Maria Edgeworth
1839 · Fine
€205
Epictetus
1600 · Fine
€1,555
George Bernard Shaw
1935 · Very good
€25
Peter Kropotkin
1886 · Very good
€60
Thomas Henry Huxley
1863 · Fine
€135
Constantin-François Volney
1796 · Fine
€355
Bartholomeus Johannes Westerbeek van Eerten
1923 · Fine · NL
€100
Samuel Taylor Coleridge
1804 · Very good
€100
Clarence E. Edwords
1893 · Very good
€100
Johannes Govertus de Man
1875 · Very good · NL
€95
Frederick Temple
1894 · Very good
€75
Augustin Privat-Deschanel
1903 · Very good
€40
William Paley
1805 · Very good
€175
D. Embden
1902 · Very good · NL
€30
Edwin A. Burtt
1926 · Very good
€25
Margaret Gatty, Alfred Gatty
1865 · Very good
€75
Rudolf Steiner, Max Gysi
1910 · Very good
€25
Gilbert Keith Chesterton
1935 · Very good
€85
Seneca the Younger
1909 · Very good
€60
John Ray
1709 · Very good
€280
Édouard Jacques Guillaume Everts
1911 · Very good · NL
€85
Alfred Russel Wallace
1881 · Very good
€250
George Santayana
1935 · Very good
€75
A. Privat-Deschanel
1875 · Very good
€80
Samuel Stanhope Smith
1793 · Fine
€925