Francis Bacon
1930 · Fair
€45
S. Laing
1916 · Good
€50
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
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
Rabindranath Tagore
1917 · Very good
€35
Jan Jacob Bruins
1935 · Very good · NL
€45
Hendrik Blink
1921 · Very good · NL
€30
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
Arabella B. Buckley
1887 · Good
€45
Edward Sapir
1926 · Good
€40
R. G. Collingwood
1929 · Good
€35
Friedrich Fröbel
1919 · Good
€20
Steven S. Zumdahl
1915 · Good
€45
Hendrik Blink
1925 · Fair · NL
€20
John L. Stoddard
1900 · Very good
€25
Henri Bergson, Nancy Margaret Paul
1902 · Good
€45
Lankester, E. Ray Sir
1922 · Good
€30
Jules Bernard Luys
1909 · Good
€25
Peter Kropotkin
1903 · Fair
€15
Edward Livingston Youmans
1896 · Good
€50
Denison Olmsted
1857 · Fair
€40
Ika A. Thomése
1935 · Fine · NL
€35
Steven S. Zumdahl
1915 · Fine
€45
Snyder, Harry
1925 · Good
€20
John Ruskin
1900 · Very good
€25
Klaas Johan Pen
1935 · Fine · NL
€35
Thompson, D'Arcy Wentworth
1931 · Fine
€35
John Ruskin
1906 · Good
€40
William Morris Hunt
1883 · Good
€40
Nathan Altshiller-Court
1926 · Fair
€35
John Tyndall
1904 · Fair
€20
Campbell, Douglas Houghton
1911 · Fair
€25
George Ade
1917 · Good
€45
Henri Poincaré, J. McKeen Cattell
1915 · Good
€50
Genevieve Stebbins
1920 · Fair
€20
Hastings Rashdall
1923 · Very good
€25
Carl David Tolmé Runge
1916 · Fine
€50
Martin, Geoffrey
1931 · Good
€25
Lawrence Wolff
1929 · Very good
€35
John Francis Campbell
1865 · Good
€50
Jules Bernard Luys
1935 · Fair
€30
William Chauvenet
1899 · Very good
€45
Arthur Schopenhauer
1868 · Good
€40
John Caird
1884 · Fair
€25
John Caird
1905 · Very good
€30
G. Hartwig
1900 · Good
€25
Salomon Müller
1870 · Fair · NL
€50
Edward Carpenter, Jeff Carreira
1911 · Fair
€40
Henri Poincaré
1910 · Fine
€30