William Kingdon Clifford
1914 · Fair
€35
Martin Klopstock
1911 · Good
€35
Yogananda Paramahansa
1931 · Fine
€125
Eugène Pittard
1926 · Good
€20
George Santayana
1935 · Very good
€75
G. Wisse
1908 · Very good · NL
€30
Glentworth Reeve Butler
1902 · Fair
€55
A. S. Neill
1935 · Very good
€45
Garrett Putman Serviss
1935 · Good
€95
Herbert French
1914 · Good
€20
H. Stanley Redgrove
1935 · Fair
€15
John Cowper Powys
1933 · Very good
€50
Elsdon Best
1935 · Good
€20
Frederick Soddy
1935 · Fine
€30
Rabindranath Tagore
1935 · Good
€30
Albert Einstein, G. B. Jeffery
1926 · Fair
€25
Samuel Gronemann
1935 · Good · NL
€110
Freda Dinn
1903 · Very good
€35
René Descartes
1912 · Very good
€85
Henry van Dyke, Ruth Sergel
1931 · Very good
€30
Bertrand Russell
1935 · Good
€85
Georg Wilhelm Friedrich Hegel
1935 · Good
€100
Silvanus Phillips Thompson
1935 · Very good
€35
J. Reynolds Green
1916 · Fair
€20
Roger Eliot Fry
1931 · Very good
€30
Max Scheler
1935 · Good
€20
Three Initiates
1928 · Good
€20
Heinrich Spoerl
1935 · Fair · NL
€25
Morris Raphael Cohen
1935 · Fine
€35
Nederlandse Mycologische Vereniging
1918 · Fair · NL
€15
Armando Palacio Valdés, Guy Everett Snavely
1919 · Good
€20
Adolf Engler
1917 · Good
€25
Upton Sinclair
1927 · Very good
€75
J. H. Van Zanten
1928 · Good · NL
€35
Joseph Le Conte
1928 · Very good
€30
Carlton C. Curtis
1907 · Fine
€50
Friedrich Fröbel
1913 · Good
€20
Thorstein Veblen, Teichgraeber, Richard F., III
1932 · Good
€20
Sidney Lanier
1910 · Good
€50
John Harvey Kellogg
1914 · Very good
€140
Thomas Troward
1922 · Good
€30
Sir J. J. Thomson
1907 · Good
€25
Clive Bell
1924 · Very good
€115
Śāntideva
1935 · Fair
€40
Ernst Christian Achelis
1902 · Good · NL
€20
Christiaan Lodewijk Houthuysen
1930 · Good · NL
€30
Hilaire Belloc
1929 · Fine
€35
Peter Willem Hendrik Truyen
1901 · Fair · NL
€15
Heber W. Youngken
1935 · Fine
€110
Abraham Kuyper
1914 · Good · NL
€20
Hartmann, Sadakichi
1929 · Good
€20
J. van Lennep
1918 · Good · NL
€35
F. Pijper
1923 · Very good · NL
€75
Frank Hall Thorp
1906 · Good
€25
G. A. Henty
1904 · Very good
€55
Patrick A. Finney
1935 · Very good
€60
Robert Sterling Clark, Arthur de Clare Sowerby
1935 · Very good
€55
Adriaan Pit
1930 · Good · NL
€25
William Morris
1917 · Fair
€20
Aristotle
1901 · Good
€70