W. H. R. Rivers
1927 · Good
€30
E. T. Whittaker, Sir William McCrae
1906 · Good
€35
Hammarsten, Olof
1894 · Very good
€110
Amédée Guillemin
1892 · Good
€85
William Derham
1720 · Good
€785
John Conduitt
1733 · Very good
€665
Alexander von Humboldt
1858 · Good
€110
Epictetus
1920 · Good
€20
Johann Heinrich Pestalozzi
1833 · Good
€155
Morris Raphael Cohen
1935 · Fine
€35
Calvin Cutter
1849 · Fine
€420
Pierre Joseph Macquer
1782 · Good
€205
J. H. Poynting
1916 · Very good
€45
Julius Adolph Stöckhardt
1876 · Good
€55
Thomas Roderick Fraser, Andrew Dewar
1881 · Fair
€95
Victor von Richter
1916 · Good
€25
Albert Einstein, G. B. Jeffery
1926 · Fair
€25
Martin Klopstock
1911 · Good
€35
Nicolas Malebranche
1693 · Very good
€600
Galileo Galilei
1664 · Very good
€2,345
H. A Derksen
1905 · Fair · NL
€55
Edwin Emery Slosson
1935 · Very good
€40
Jørgen Peter Müller
1902 · Fine
€155
Alexander Findlay
1908 · Good
€40
Madhava
1890 · Good
€110
Willem Kloos
1902 · Very good · NL
€65
Caleb Bingham
1806 · Fine
€180
William Archer
1925 · Fair
€55
Karl Pearson
1924 · Very good
€75
William Gilbert
1610 · Very good
€895
Jane Haldimand Marcet
1845 · Good
€120
Jane Haldimand Marcet
1820 · Fine
€365
Charles Hamilton Smith
1825 · Good
€250
Joseph Louis Lagrange, A. Boissonnade
1793 · Very good
€505
Antoine Laurent Lavoisier
1812 · Fine
€315
Frank Hall Thorp
1906 · Good
€25
Charles Holtzapffel
1804 · Good
€145
Ebenezer Cunningham
1921 · Very good
€70
Roger Eliot Fry
1931 · Very good
€30
Thomson, Thomas
1830 · Good
€215
William Cecil Dampier
1930 · Very good
€60
W. Brennand
1903 · Very good
€70
Nehemiah Grew
1681 · Fair
€785
Thomas P. Jones
1868 · Good
€70
Gottfried Wilhelm Leibniz
1721 · Good
€460
Friedrich Fröbel
1913 · Good
€20
Walter Hilton, Hilton
1528 · Very good
€620
Amédée Guillemin
1886 · Very good
€205
Epictetus
1657 · Fine
€2,875
Heinrich Durège, George Egbert Fisher
1867 · Good
€60
Camille Flammarion
1887 · Fine
€80
William Shakespeare, David Wellens (editor)
1907 · Good
€50
Otto Zuckerkandl
1922 · Good
€45
Ira Remsen
1888 · Very good
€120
Jane Haldimand Marcet
1809 · Fine
€255
Ika A. Thomése
1935 · Fine · NL
€35
Michael Faraday
1842 · Fair
€60
Calvin Cutter
1871 · Fine
€80
Catharine Esther Beecher
1857 · Fair
€70
John Erichsen
1860 · Very good
€90