Francis Bacon
1930 · Fair
€45
John Dewey
1910 · Fine
€30
S. Laing
1916 · Good
€50
Thorstein Veblen, Teichgraeber, Richard F., III
1932 · Good
€20
Tito Vignoli
1885 · Good
€50
William Dwight Whitney
1898 · Fair
€35
Wanda M. Miller, Wanda Maureen Miller
1912 · Good
€35
John Leslie
1861 · Fair
€50
John Dewey
1935 · Good
€30
William Dwight Whitney
1918 · Very good
€25
Worthington Hooker
1865 · Good
€50
Edwin Checkley
1890 · Good
€50
F. H. Bradley
1905 · Good
€30
Wilbur Pardon Bowen
1935 · Good
€50
John Dewey
1901 · Good
€45
Rabindranath Tagore
1917 · Very good
€35
Jan Jacob Bruins
1935 · Very good · NL
€45
Hendrik Blink
1921 · Very good · NL
€30
Garrett Putman Serviss
1909 · Good
€45
Friedrich Fröbel
1913 · Good
€20
Frederick Orpen Bower, Sydney Howard Vines
1903 · Fair
€45
Cassius Jackson Keyser
1935 · Good
€50
F. Max Müller
1884 · Good
€40
Samuel Schmucker Sadtler
1935 · Very good
€45
Ernst Cassirer, Claus Rosenkranz
1935 · Good
€25
Charles Kingsley
1881 · Fair
€45
Rudolf Steiner, David W. Wood
1935 · Good
€20
Thomas Henry Huxley
1889 · Fair
€30
Arabella B. Buckley
1887 · Good
€45
Edward Sapir
1926 · Good
€40
Percival Lowell
1907 · Very good
€25
R. G. Collingwood
1929 · Good
€35
Charles Riborg Mann
1916 · Very good
€35
Friedrich Fröbel
1919 · Good
€20
Steven S. Zumdahl
1915 · Good
€45
Hendrik Blink
1925 · Fair · NL
€20
Martin Klopstock
1911 · Good
€35
Joseph Louis Lagrange, Thomas J. McCormack
1898 · Good
€40
Ron Larson
1906 · Good
€45
John L. Stoddard
1900 · Very good
€25
William Kingdon Clifford
1914 · Fair
€35
Henri Bergson, Nancy Margaret Paul
1902 · Good
€45
Lankester, E. Ray Sir
1922 · Good
€30
Carlton C. Curtis
1907 · Fine
€50
Jules Bernard Luys
1909 · Good
€25
Peter Kropotkin
1903 · Fair
€15
John Dewey
1920 · Very good
€40
Samuel Pierpont Langley
1889 · Good
€45
Edward Livingston Youmans
1896 · Good
€50
Balfour Stewart
1919 · Good
€20
Denison Olmsted
1857 · Fair
€40
Ika A. Thomése
1935 · Fine · NL
€35
Steven S. Zumdahl
1915 · Fine
€45
A. S. Neill
1935 · Very good
€45
Snyder, Harry
1925 · Good
€20
Abraham Kuyper
1911 · Fine · NL
€30
John Ruskin
1900 · Very good
€25
Roger Eliot Fry
1931 · Very good
€30
Klaas Johan Pen
1935 · Fine · NL
€35
Thompson, D'Arcy Wentworth
1931 · Fine
€35