Harold Begbie
1913 · Good
€30
Hélène Swarth
1921 · Good · NL
€30
George Bernard Shaw
1913 · Good
€20
Frans Verschoren
1913 · Good · NL
€20
Jacques Loeb
1918 · Good
€35
F. Matthias Alexander
1935 · Fine
€35
Joris-Karl Huysmans
1901 · Good
€20
William Dean Howells
1900 · Good
€35
Edwin Abbott Abbott
1911 · Fair
€40
Josiah Royce
1935 · Very good
€30
Søren Kierkegaard
1884 · Good
€50
Gardner, Charles
1935 · Very good
€25
Marcellus Emants
1904 · Good · NL
€20
Klikspaan
1935 · Fair · NL
€35
Edwin Checkley
1890 · Good
€50
Neale Donald Walsch
1924 · Very good
€25
George Moore
1935 · Good
€20
E. V. Lucas
1932 · Good
€30
Lydia Maria Child
1872 · Fair
€25
Charles Benedict Davenport
1935 · Fair
€45
Pierre Eliza Clausing
1914 · Fair · NL
€20
Theodore Parker
1884 · Good
€45
Thompson, D'Arcy Wentworth
1931 · Fine
€35
Arthur van Schendel
1931 · Very good · NL
€45
Arnold J. Toynbee
1935 · Fair
€15
Annie Salomons
1935 · Good · NL
€20
Hélène Swarth
1904 · Fair · NL
€15
Joannes Willem Huysinga
1913 · Good · NL
€40
Richard Courant
1927 · Good
€35
Nicholas Patrick Wiseman
1888 · Fair
€25
William Henry Bragg
1925 · Fair
€20
Albert Schweitzer
1926 · Very good
€30
Logan, John Alexander, John Alexander Logan
1919 · Very good
€25
H. Was
1898 · Very good · NL
€50
Hendrik van Druten
1904 · Fair · NL
€20
Marcellus Emants
1889 · Fair · NL
€40
John Caird
1884 · Fair
€25
John Caird
1905 · Very good
€30
Charles Boissevain
1887 · Fair · NL
€35
Vreeswijk, Johannes Adrianus, jr.
1909 · Good · NL
€25
Orville J. Nave
1905 · Fair
€35
Arthur Schopenhauer
1868 · Good
€40
Alfred North Whitehead
1921 · Good
€20
Benedictus de Spinoza
1909 · Good
€30
Oswald Spengler, Charles Francis Atkinson
1918 · Good
€45
Rabindranath Tagore
1917 · Very good
€35
John Tyndall
1904 · Fair
€20
Joseph Pohle
1924 · Very good
€30
Walter Rauschenbusch
1917 · Good
€30
J. H. Poynting
1922 · Very good
€35
Sophus Lie
1907 · Very good
€30
Bayard Taylor
1878 · Good
€50
H. A. J. van Swaay
1919 · Good · NL
€35
John Dewey
1923 · Very good
€25
Denison Olmsted
1857 · Fair
€40
Andrew Dickson White
1923 · Very good
€25
Adrian Fortescue, J. B. O'Connell
1935 · Very good
€25
Jean Marie Antoine Gevers Leuven
1904 · Good · NL
€20
Petrus Mathias Snickers
1880 · Fair · NL
€45
Rudolf Steiner
1898 · Fair
€25