Francis Bacon
1930 · Fair
€45
John Dewey
1910 · Fine
€30
S. Laing
1916 · Good
€50
Thorstein Veblen, Teichgraeber, Richard F., III
1932 · Good
€20
Wanda M. Miller, Wanda Maureen Miller
1912 · Good
€35
John Dewey
1935 · Good
€30
William Dwight Whitney
1918 · Very good
€25
Yogananda Paramahansa
1931 · Fine
€125
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
Otto Jespersen, Otto Jespersen
1904 · Good
€95
Cassius Jackson Keyser
1935 · Good
€50
Samuel Schmucker Sadtler
1935 · Very good
€45
Ernst Cassirer, Claus Rosenkranz
1935 · Good
€25
Rudolf Steiner, David W. Wood
1935 · Good
€20
Mary Baker Eddy
1911 · Very good
€70
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
Roger Eliot Fry
1921 · Fair
€55
Richard Thayer Holbrook
1919 · Very good
€70
Moritz Schlick
1928 · Good
€55
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
Florian Cajori
1929 · Good
€65
Jules Bernard Luys
1909 · Good
€25
Peter Kropotkin
1903 · Fair
€15
John Dewey
1920 · Very good
€40
L. E. J. Brouwer
1909 · Good · NL
€60
Balfour Stewart
1919 · Good
€20
Ika A. Thomése
1935 · Fine · NL
€35
Augustus De Morgan
1903 · Very good
€60
René Descartes
1912 · Very good
€85
Steven S. Zumdahl
1915 · Fine
€45
C. Judson Herrick
1931 · Fine
€55
A. S. Neill
1935 · Very good
€45
Henri Poincaré, Francis Maitland
1907 · Good
€60
Snyder, Harry
1925 · Good
€20
Abraham Kuyper
1911 · Fine · NL
€30
Lankester, E. Ray Sir
1925 · Good
€55
Foeke Buitenrust Hettema
1914 · Very good · NL
€55
John Ruskin
1900 · Very good
€25
Andrew Lang
1935 · Fine
€110
Roger Eliot Fry
1931 · Very good
€30