Ronald Aylmer Fisher
1932 · Very good
€40
Charles Benedict Davenport
1935 · Fair
€45
Carl Joseph West
1920 · Very good
€45
Ida B. Wells-Barnett, I. Garland Penn
1914 · Fair
€35
Florian Cajori
1907 · Very good
€45
Walter W. Bryant
1907 · Good
€25
Gilbert Keith Chesterton
1935 · Fair
€20
Carl David Tolmé Runge
1916 · Fine
€50
Charles Elam
1869 · Good
€40
E. T. Whittaker, Sir William McCrae
1906 · Good
€35
Henry E. Roscoe
1906 · Good
€45
René Vallery-Radot
1917 · Good
€35
W. W. How, Joseph Wells
1928 · Very good
€25
Leonard E. Dickson
1930 · Very good
€45
Thomas Griffith Taylor
1922 · Very good
€50
W. W. Rouse Ball
1901 · Fair
€30
Walter Pater
1925 · Very good
€40
Alfred North Whitehead
1921 · Good
€20
Alfred Stillé
1927 · Good
€20
Theodore Parker
1884 · Good
€45
Inge, William Ralph
1922 · Good
€25
Iwan Bloch, Richard Deniston
1901 · Very good
€25
Upton Sinclair
1916 · Very good
€25
Lawson Tait
1926 · Good
€40
Lafcadio Hearn
1935 · Good
€20
José Ortega y Gasset
1935 · Good
€45
Orville J. Nave
1905 · Fair
€35
Klikspaan
1935 · Fair · NL
€35
Gerlof van Vloten
1901 · Fair · NL
€15
W. W. Rouse Ball
1909 · Good
€30
Eduard Strasburger
1935 · Fine
€45
F. Max Müller
1910 · Very good
€35
E. T. Whittaker
1920 · Good
€25
John Charles Van Dyke
1905 · Very good
€35
Hendrik Ver Loren van Themaat
1903 · Very good · NL
€45
Arthur Schopenhauer
1868 · Good
€40
Karl Fink
1904 · Very good
€40
Henry Ward Beecher
1880 · Very good
€50
H. Was
1898 · Very good · NL
€50
Simon Newcomb
1903 · Good
€45
University of Chicago.
1904 · Good
€30
Park, Roswell
1911 · Good
€25
René Vallery-Radot
1903 · Very good
€35
Rowland Ward
1935 · Good
€25
J. H. Poynting
1922 · Very good
€35
Hendrik Blink
1925 · Fair · NL
€20
Hilaire Belloc
1929 · Fine
€35
Henry Lewis Rietz
1929 · Fair
€30
Henry White Warren
1901 · Good
€45
James Russell Lowell
1924 · Very good
€35
Peter Kropotkin
1903 · Fair
€15
John Stuart Mill
1908 · Good
€50
Upton Sinclair
1935 · Good
€35
Hutchison, Robert Sir, H. Stansfield Collier
1929 · Fair
€20
Cassius Jackson Keyser
1935 · Good
€50
G. H. Hardy, T. W. Körner
1935 · Very good
€25
Andrew Dickson White
1923 · Very good
€25
Denison Olmsted
1857 · Fair
€40
Garrett Putman Serviss
1913 · Good
€35
Charles Riborg Mann
1916 · Very good
€35