Bertrand Russell
1935 · Fair
€30
Peter Kropotkin
1910 · Fine
€50
Richard H. Tawney
1935 · Good
€35
Paul Eltzbacher
1922 · Very good
€50
R. J. W. Rudolph
1917 · Fair · NL
€25
John Caird
1884 · Fair
€25
John Caird
1905 · Very good
€30
Walter Crane
1911 · Very good · NL
€25
Will Durant
1919 · Good
€50
Thorstein Veblen
1921 · Good
€40
Benedetto Croce
1915 · Good
€30
Bertrand Russell
1916 · Fair
€45
Emma Goldman
1919 · Fair
€35
Grant Allen
1910 · Good
€40
Rabindranath Tagore
1917 · Very good
€35
Jan Casper Schreuder
1930 · Good · NL
€45
John Ruskin
1935 · Very good
€35
Miguel de Unamuno
1935 · Good
€25
Abraham Kuyper
1911 · Fine · NL
€30
Edward Carpenter
1906 · Good
€25
D. Embden
1902 · Very good · NL
€30
Friedrich Engels
1907 · Good
€50
Frederick Moore Simpson
1908 · Very good
€35
Aulnis de Bourouill, Johan baron d'
1880 · Fair · NL
€35
Peter Kropotkin
1903 · Fair
€15
Ferdinand Domela Nieuwenhuis
1904 · Fair · NL
€45
Lydia Maria Child
1872 · Fair
€25
Michel Herman van Campen
1927 · Very good · NL
€35
Henry E. Roscoe
1906 · Good
€45
H. Koffyberg
1924 · Fair · NL
€20
John Cowper Powys
1933 · Very good
€50
F. Max Müller
1884 · Good
€40
Thomas Henry Huxley, James Paradis
1935 · Very good
€25
Jan Jacob Bruins
1935 · Very good · NL
€45
Auguste Comte
1930 · Good
€30
University of Chicago. Press.
1913 · Good
€50
Ernst Cassirer, Claus Rosenkranz
1935 · Good
€25
Max Scheler
1935 · Good
€20
Rudolf Steiner, Max Gysi
1910 · Very good
€25
Friedrich Fröbel
1919 · Good
€20
B. Bymholt
1896 · Good · NL
€45
Cassius Jackson Keyser
1935 · Good
€50
Sextus Empiricus.
1887 · Good
€40
T. E. Hulme
1935 · Very good
€25
S. Laing
1916 · Good
€50
Thorstein Veblen, Teichgraeber, Richard F., III
1932 · Good
€20
Upton Sinclair
1916 · Very good
€25
Benjamin N. Cardozo
1924 · Very good
€25
William Edward Hartpole Lecky
1871 · Fair
€35
Vincent L. Milner
1867 · Fair
€30
Abraham Kuyper
1907 · Very good · NL
€30
Abraham Kuyper
1935 · Very good · NL
€50
William Kingdon Clifford
1914 · Fair
€35
Arthur Henderson Smith
1935 · Fair
€40
Multatuli
1881 · Fair
€40
Jacques Loeb
1918 · Good
€35
John Dewey
1901 · Good
€45
Roscoe Pound
1935 · Fair
€45
Edward Sapir
1926 · Good
€40
Ward, James
1902 · Good
€20