Alexander von Humboldt
1876 · Very good
€150
L. Frank Baum
1919 · Good
€30
John Leslie
1861 · Fair
€50
Benedictus de Spinoza, Seymour Feldman
1679 · Good
€705
Grant Allen
1884 · Very good
€45
John Stuart Mill
1863 · Very good
€80
Samuel Taylor Coleridge
1810 · Good
€310
Elias Loomis
1854 · Good
€105
John Wesley
1796 · Very good
€575
Catherine Parr Traill
1874 · Fine
€160
John Stuart Mill
1891 · Very good
€65
John Tyndall
1904 · Fair
€20
Bertrand Russell
1916 · Fair
€45
John Ruskin
1879 · Good
€100
Richard Helsham
1743 · Very good
€365
Theodore Ayrault Dodge
1894 · Fair
€80
John Couch Adams, J. W. L. Glaisher
1903 · Good
€30
John Locke, Ian Shapiro
1700 · Good
€315
John Stuart Mill, John M. Robson
1867 · Good
€140
Niccolò Machiavelli, Félix Fernández Murga
1602 · Fine
€1,325
Francis Bacon
1899 · Fine
€130
George MacDonald
1857 · Fair
€45
Woodrow Wilson
1920 · Very good
€90
Walter W. Bryant
1907 · Good
€25
René Descartes
1655 · Fine
€1,820
Ernst Heinrich Philipp August Haeckel
1900 · Fine
€30
Gilbert Keith Chesterton
1929 · Fine
€50
Alexander von Humboldt
1853 · Very good
€50
Alexander Lowy, Benjamin Harrow
1924 · Fine
€120
Samuel Williams
1759 · Good
€240
Catherine Parr Traill, Elizabeth Thompson
1908 · Fair
€20
Mary Shelley
1828 · Good
€120
Bertrand Russell
1935 · Fair
€30
David Duncan
1904 · Good
€70
Alfred North Whitehead
1930 · Fine
€40
William Leybourn, Richard Sault
1696 · Good
€1,050
Mark Twain
1915 · Fine
€70
Margaret Bryan
1800 · Good
€210
Eduard Strasburger
1935 · Fine
€45
Johann Wolfgang von Goethe, Peter Huber
1800 · Very good
€210
F. H. Loring
1923 · Very good
€120
Thomas Hobbes
1862 · Good
€205
Thomas Henry Huxley
1897 · Fine
€135
Jacob Abbott
1862 · Very good
€115
Lankester, E. Ray Sir
1922 · Good
€30
Johann Wolfgang von Goethe
1864 · Good
€40
Leonhard Euler
1805 · Fair
€60
Kalm, Pehr
1771 · Very good
€230
Thomas Henry Huxley
1905 · Good
€70
William Thomson Kelvin
1889 · Very good
€165
David Hume
1775 · Good
€180
George Campbell
1823 · Very good
€150
William Wordsworth
1881 · Fine
€70
United States. Army.
1795 · Fine
€295
Jacob Abbott
1864 · Fair
€40
Patrick Fraser Tytler
1847 · Good
€225
William Morris
1916 · Very good
€50
Alexander Moszkowski
1935 · Fair
€15
Henry Sidgwick
1893 · Good
€95
James Orchard Halliwell-Phillipps, William Bourne
1839 · Good
€95