William Beebe
1922 · Very good
€60
Charles Darwin
1909 · Fine
€90
Joseph Le Conte
1928 · Very good
€30
Sedgwick, Adam
1915 · Very good
€95
Beatrix Potter
1912 · Good
€35
Eugène Pittard
1926 · Good
€20
George Santayana
1935 · Very good
€75
Nederlandse Mycologische Vereniging
1918 · Fair · NL
€15
Georg Wilhelm Friedrich Hegel
1935 · Good
€100
T. Jeffery Parker
1907 · Fair
€55
Gelett Burgess
1900 · Fair
€50
Carl Gustav Jung
1915 · Very good
€25
Osler, William Sir
1926 · Very good
€45
Herman Gorter
1935 · Very good · NL
€40
Alpheus S. Packard
1904 · Good
€25
Thomas Vicary
1934 · Good
€75
Ernest Thompson Seton
1912 · Fair
€25
Upton Sinclair
1927 · Very good
€75
H. Stanley Redgrove
1935 · Fair
€15
P. Biesterveld
1932 · Good · NL
€75
Charles Almanzo Babcock
1935 · Fine
€75
Three Initiates
1928 · Good
€20
Edward Carpenter
1935 · Good
€40
Foeke Buitenrust Hettema
1914 · Very good · NL
€55
Adriaan Pit
1930 · Good · NL
€25
Friedrich Fröbel
1913 · Good
€20
Juliana Horatia Gatty Ewing
1927 · Good
€20
Yogananda Paramahansa
1931 · Fine
€125
Carl Gustav Jung
1925 · Very good
€30
Erwin Rohde
1913 · Very good
€75
Grant Allen
1935 · Good
€75
Roger Eliot Fry
1931 · Very good
€30
Margery Williams Bianco
1935 · Good
€20
Adolf Engler
1917 · Good
€25
Plato
1917 · Good
€30
Clara Dillingham Pierson
1900 · Very good
€50
Beatrix Potter
1914 · Very good
€60
Rudolf Otto
1929 · Fine
€35
Louis Couperus
1906 · Very good · NL
€50
Lewis Foreman Day
1920 · Fine
€70
John Henry Newman
1914 · Good
€20
Hubert Howe Bancroft
1905 · Good
€25
Peter Willem Hendrik Truyen
1901 · Fair · NL
€15
J. A. Dubois
1902 · Very good
€25
Robert Flint
1932 · Very good
€40
Sigmund Freud
1906 · Good
€25
Michiel Cornelis van Mourik Broekman
1925 · Very good · NL
€95
George Arthur Piersol, Thomas Dwight
1915 · Good
€45
Charles G. D. Roberts
1906 · Good
€30
Gerrit van de Linde
1909 · Fair · NL
€20
Edward Granville Browne
1910 · Fair
€25
Rudolf Otto, Otto, Rudolf (Carl Ludwig Rudolf), 1869-1937.
1929 · Fair
€15
Carlton C. Curtis
1907 · Fine
€50
Max Scheler
1935 · Good
€20
José Ortega y Gasset
1915 · Very good
€45
Martin Klopstock
1911 · Good
€35
Clive Bell
1924 · Very good
€115
Thomas Troward
1922 · Good
€30
Pieter Lodewijk Muller
1917 · Fair · NL
€55
J. van Lennep
1918 · Good · NL
€35