René Descartes
1912 · Very good
€85
Norman Kemp Smith
1924 · Very good
€115
Morris Raphael Cohen
1935 · Fine
€35
George Santayana
1908 · Very good
€55
S. Laing
1916 · Good
€50
E. T. Feteris
1912 · Fair · NL
€25
A. S. Neill
1935 · Very good
€45
Edmund Husserl
1913 · Good
€45
Mark Twain
1903 · Very good
€30
Cassius Jackson Keyser
1935 · Good
€50
Berdoe, Edward
1903 · Very good
€30
F. Matthias Alexander
1935 · Fine
€35
Elias Loomis
1902 · Fine
€55
Jacques Loeb
1918 · Good
€35
Chancellor, William Estabrook
1908 · Good
€70
Joannes Willem Huysinga
1913 · Good · NL
€40
Yogananda Paramahansa
1931 · Fine
€125
Lewis Carroll
1918 · Very good
€80
Josiah Royce
1935 · Very good
€30
Carl David Tolmé Runge
1916 · Fine
€50
Logan, John Alexander, John Alexander Logan
1919 · Very good
€25
Aristotle
1901 · Good
€70
Arthur Schopenhauer
1912 · Good
€30
J. H. Poynting
1922 · Very good
€35
Florian Cajori
1907 · Very good
€45
George Edward Howe
1907 · Good
€55
Eskelhoff Carsjen Gravemeijer
1902 · Good · NL
€30
John Dewey
1910 · Fine
€30
T. E. Hulme
1935 · Very good
€25
H. Koffyberg
1924 · Fair · NL
€20
Vreeswijk, Johannes Adrianus, jr.
1909 · Good · NL
€25
F. H. Loring
1923 · Very good
€120
Herbert E. Cobb
1935 · Very good
€30
Adriaan Pit
1930 · Good · NL
€25
Lewis Carroll
1914 · Very good
€25
Arthur A. Noyes
1935 · Good
€20
George Santayana
1920 · Very good
€100
Joseph Schatzker, Marvin Tile
1921 · Very good
€25
Hastings Rashdall
1923 · Very good
€25
Carl Gustav Jung
1915 · Very good
€25
Charles John Holmes
1935 · Very good
€35
Edward Carpenter, Jeff Carreira
1911 · Fair
€40
Roscoe Pound
1935 · Fair
€45
John Cowper Powys
1933 · Very good
€50
John Henry Newman
1906 · Very good
€80
Henry E. Roscoe
1906 · Good
€45
E. T. Whittaker, G. N. Watson
1920 · Fine
€75
James Bissett Pratt
1935 · Very good
€70
Bertrand Russell
1933 · Good
€60
Jules Bernard Luys
1909 · Good
€25
H. G. Wells
1911 · Very good
€40
Steven S. Zumdahl
1907 · Very good
€25
A. S. Neill
1933 · Good
€90
Rabindranath Tagore
1917 · Very good
€35
Frank Julian
1904 · Good
€60
John Caird
1905 · Very good
€30
Samuel Pierpont Langley
1903 · Good
€20
Routh, Edward John
1920 · Good
€60
Richard C. Cabot
1908 · Good
€40
Oscar Wilde
1904 · Very good
€30