John of the Cross
1914 · Fair
€20
Asvaghosa, Numata Center for Buddhist Translation and Research
1906 · Very good
€80
Burnett Hillman Streeter, R. Brook
1919 · Fair
€15
Śāntideva
1935 · Fair
€40
René Descartes
1912 · Very good
€85
A. S. Neill
1935 · Very good
€45
John Henry Newman
1914 · Good
€20
Ernst Christian Achelis
1902 · Good · NL
€20
Abraham Kuyper
1914 · Good · NL
€20
Yogananda Paramahansa
1931 · Fine
€125
Max Scheler
1935 · Good
€20
Three Initiates
1928 · Good
€20
Dock, Lavinia L.
1905 · Good
€20
Johann Joseph Most
1928 · Good
€20
Ernest Shurtleff Holmes
1935 · Fair
€15
Richard Holt Hutton
1902 · Very good
€65
Albert J. Edmunds
1935 · Good
€40
Phillips Brooks
1915 · Good
€65
Charles Haddon Spurgeon
1910 · Good
€30
A. van Veldhuizen
1935 · Good · NL
€30
Joseph Le Conte
1928 · Very good
€30
Jørgen Peter Müller
1902 · Fine
€155
Garrett Putman Serviss
1935 · Good
€95
George Santayana
1935 · Very good
€75
Maria Montessori
1931 · Good
€110
F. Pijper
1915 · Very good · NL
€40
Hegeler Institute
1924 · Fine
€100
Freda Dinn
1903 · Very good
€35
Rudolf Otto
1929 · Fine
€35
Friedrich Fröbel
1913 · Good
€20
J. A. Dubois
1902 · Very good
€25
F. Pijper
1923 · Very good · NL
€75
W. M. Flinders Petrie, William F. Petrie
1911 · Good
€60
W. W. How, Joseph Wells
1928 · Very good
€25
Gerrard Hickson
1922 · Very good
€35
R. Krul
1935 · Very good · NL
€55
Alexander Campbell Fraser
1901 · Good
€75
P. Biesterveld
1932 · Good · NL
€75
Gerrit van de Linde
1909 · Fair · NL
€20
Peter Willem Hendrik Truyen
1901 · Fair · NL
€15
Worthington Hooker
1906 · Very good
€30
Erwin Rohde
1913 · Very good
€75
Robert Flint
1932 · Very good
€40
Walter E. Thirring
1906 · Fine
€40
Upton Sinclair
1927 · Very good
€75
H. G. Wells
1929 · Very good
€25
J. Ross Robertson
1927 · Fair
€15
Eugène Pittard
1926 · Good
€20
Silvanus Phillips Thompson
1935 · Very good
€35
Plato
1917 · Good
€30
Thorstein Veblen, Teichgraeber, Richard F., III
1932 · Good
€20
Patrick A. Finney
1935 · Very good
€60
Morris Raphael Cohen
1935 · Fine
€35
H. Stanley Redgrove
1935 · Fair
€15
Alfred Wegener
1906 · Very good
€55
Josiah Royce
1903 · Very good
€65
David Bierens de Haan
1929 · Fair · NL
€15
James George Frazer
1935 · Fine
€140
Glentworth Reeve Butler
1902 · Fair
€55
Adolf Engler
1917 · Good
€25