Garrett Putman Serviss
1913 · Good
€35
Thomas Whittaker
1907 · Good
€95
Eugen Horn
1900 · Good · NL
€50
Marcellus Emants
1900 · Very good · NL
€25
Garrett Putman Serviss
1907 · Fair
€30
Garrett Putman Serviss
1909 · Good
€45
Garrett Putman Serviss
1902 · Good
€40
Garrett Putman Serviss
1911 · Fair
€50
James Martineau
1935 · Very good
€80
Augustin Privat-Deschanel
1903 · Very good
€40
Eskelhoff Carsjen Gravemeijer
1902 · Good · NL
€30
Erwin Rohde
1902 · Fair
€15
Engelbertus Eliza Willem Gerards Schröder
1917 · Very good · NL
€70
Plato
1916 · Good
€20
Justus van Maurik
1914 · Very good · NL
€45
Hermann Löns
1903 · Very good · NL
€155
Jan Pieter de Bie
1931 · Good · NL
€65
Eduard Wieber
1934 · Fair · NL
€40
Gaius
1904 · Fair
€40
Herman Heijermans
1932 · Good · NL
€25
J. Th Ubbink
1933 · Fine · NL
€95
Jacob Van Beek
1921 · Good · NL
€25
Robert Fruin
1923 · Good · NL
€30
George Adolphus Jacob
1908 · Very good
€35
Seakle Greijdanus
1935 · Good · NL
€45
Benno Jules Stokvis
1935 · Good · NL
€45
Heraclitus of Ephesus
1918 · Good
€20
Ernst Heinrich Philipp August Haeckel
1911 · Very good
€110
Lode Baekelmans
1921 · Fair · NL
€60
Abraham Kuyper
1911 · Fine · NL
€30
Uspenskiĭ Petr Demʹi͡anovich
1935 · Fine
€95
Tine de Kruyff-Gobius
1912 · Good · NL
€55
Willem Johannes Leyds
1926 · Good · NL
€75
William Chase Stevens
1909 · Good
€20
Frederick Orpen Bower, Sydney Howard Vines
1903 · Fair
€45
François HaverSchmidt
1911 · Good · NL
€20
José Ortega y Gasset
1931 · Very good
€60
Manolis Andronikos
1932 · Fine
€85
Serpa Pinto, Alfred Elwes
1927 · Good
€25
Henri Poincaré, Nicolae Sfetcu
1919 · Very good
€100
Grant Allen
1910 · Good
€40
Samuel Muller
1915 · Very good · NL
€80
Alfred North Whitehead, Bertrand Russell
1911 · Very good
€25
Edwin A. Burtt
1926 · Very good
€25
Laurens Adriaanse
1911 · Good · NL
€25
Julius Fessler
1934 · Very good · NL
€35
Jacob Gijsbert Boerlage
1925 · Good · NL
€55
Mabel Osgood Wright
1903 · Good
€40
Windisch, Hans
1926 · Fine · NL
€125
Maurits Esser
1917 · Fair · NL
€15
Mahaffy, John Pentland Sir
1918 · Good
€50
Estanislao del Campo
1921 · Good
€60
Patrick Geddes
1903 · Good
€70
George Frederick Kunz
1935 · Very good
€40
E. B. Jamieson
1914 · Fine
€40
Muir, Robert Sir, R MacSween
1935 · Very good
€80
H. Rider Haggard, H. Rider Haggard
1923 · Fine
€155
Nico van Suchtelen
1901 · Very good · NL
€25
Hendrik Pieter van Heukelom
1902 · Good · NL
€55
Peter Kropotkin
1925 · Very good
€35