H. Newell Martin
1908 · Very good
€35
H. Newell Martin
1903 · Fine
€40
Ernst Heinrich Philipp August Haeckel
1903 · Good
€20
Ernest Thompson Seton
1929 · Fine
€35
John Dewey
1910 · Fine
€30
John H. Vanderpoel
1935 · Good
€20
Cassius Jackson Keyser
1935 · Good
€50
Stefan Zweig
1935 · Good
€35
M. Joustra
1915 · Good · NL
€25
Charles G. D. Roberts
1923 · Very good
€25
Stephen Walter Ranson
1933 · Very good
€40
Abraham Kuyper
1911 · Fine · NL
€30
Edward Carpenter
1906 · Good
€25
H. G. Wells
1911 · Very good
€40
Arthur Schopenhauer
1912 · Good
€30
J. P. Kleiweg de Zwaan
1911 · Fair · NL
€30
L. Th Mayer
1910 · Good · NL
€25
Richard C. Cabot
1908 · Good
€40
Bertrand Russell
1916 · Fair
€45
Elbert Hubbard
1915 · Good
€25
Josiah Royce
1902 · Very good
€30
Rebecca Crumpler
1905 · Good
€35
E. B. Jamieson
1914 · Fine
€40
Leigh Hunt
1854 · Fair
€35
E. T. Whittaker, Sir William McCrae
1906 · Good
€35
Seneca Egbert
1908 · Good
€30
Eskelhoff Carsjen Gravemeijer
1902 · Good · NL
€30
Peter Kropotkin
1925 · Very good
€35
E. J. Banfield
1935 · Very good
€25
Edith Nesbit
1922 · Good
€20
J. J. Graham Brown
1901 · Very good
€50
Octave Mirbeau
1933 · Good
€20
Michael Morpurgo
1917 · Fair
€15
Jacinto Benavente
1920 · Good
€20
Gilbert Keith Chesterton
1935 · Fair
€35
Hugh Lofting
1920 · Very good
€45
Victor Ernest Shelford
1935 · Fair
€20
Le Roy Lewis
1914 · Good
€20
Riccardo Nobili
1935 · Good
€25
Harm Bouwman
1916 · Very good · NL
€30
Henry David Thoreau
1935 · Fair
€15
John Dewey
1935 · Good
€30
Irvin S. Cobb
1935 · Good
€50
H. Koffyberg
1924 · Fair · NL
€20
J. P. Kleiweg de Zwaan
1920 · Good · NL
€45
Thornton W. Burgess, Maddie Frost
1918 · Fair
€20
Frank E. Beddard
1902 · Very good
€25
Charles Riborg Mann
1916 · Very good
€35
Vincent L. Milner
1867 · Fair
€30
Egerton R. Young
1913 · Fair
€20
D. W. Cathell
1906 · Good
€20
Johannes Sobotta
1919 · Good
€50
Ida B. Wells-Barnett, I. Garland Penn
1914 · Fair
€35
Frederick Orpen Bower, Sydney Howard Vines
1903 · Fair
€45
Neltje Blanchan
1898 · Fair
€30
P. de Haan
1932 · Very good · NL
€50
James Allen
1917 · Very good
€25
John Palliser
1862 · Good
€35
Martin Robison Delany
1865 · Good
€40
Mabel Osgood Wright
1903 · Good
€40