Richard A. Proctor
1918 · Good
€50
H. Was
1898 · Very good · NL
€50
Raimond van Marle
1935 · Fair · NL
€15
Friedrich Engels
1907 · Good
€50
Winand Carel Hugo Staring
1860 · Good · NL
€145
Wilkie Collins
1869 · Fine
€165
John Tyndall
1904 · Fair
€20
Arthur van Schendel
1931 · Very good · NL
€45
Lodewijk van Deyssel
1935 · Good · NL
€40
[name missing]
1877 · Good · NL
€65
[name missing]
1874 · Fair · NL
€45
Jan ten Brink
1874 · Very good · NL
€85
Titus Livius
1917 · Very good · NL
€100
Ira Remsen
1886 · Good
€105
Marcellus Emants
1889 · Fair · NL
€40
John Herbert Sangster
1863 · Good
€75
Hermann Wätjen
1927 · Very good · NL
€50
Jan Greshoff
1929 · Good · NL
€75
Robert Ellis, F.L.S.
1852 · Very good
€110
L. E. J. Brouwer
1909 · Good · NL
€60
Charles Herbert Moore
1930 · Fair
€30
R. C. Boer
1926 · Very good · NL
€50
Arthur Schopenhauer
1868 · Good
€40
T. J. Bezemer
1903 · Good · NL
€25
John William Norie
1886 · Good
€50
Stone, Witmer
1905 · Fair
€20
Jan ten Brink
1892 · Fair · NL
€40
Emanuel Hannak
1911 · Very good · NL
€25
Max Born
1935 · Good
€25
Claude Phillips
1935 · Good
€30
Hélène Swarth
1904 · Fair · NL
€15
Georg Moritz Ebers
1887 · Very good
€175
Salomon Müller
1870 · Fair · NL
€50
University of Maryland (1812-1920)
1935 · Fair
€30
Paul Frédéricq
1903 · Very good · NL
€85
P. Verkade
1859 · Good · NL
€45
J. H. Poynting
1922 · Very good
€35
Clifford Whittingham Beers
1911 · Fine
€70
J. H. Poynting
1916 · Very good
€45
P. L. Macdougall
1873 · Fair
€50
Balfour Stewart
1875 · Very good
€120
Johannes Pieter Janse
1935 · Fair · NL
€70
Maurice Maeterlinck
1906 · Very good
€45
Abraham Kuyper
1881 · Very good · NL
€60
J. J. van Toorenenbergen
1903 · Fair · NL
€15
Hermann von Helmholtz
1889 · Fair
€35
Frederik van Eeden
1918 · Very good · NL
€70
F. Max Müller, George Putnam Upton
1895 · Good
€75
Harry Leach
1874 · Fine
€65
Martin Andersen Nexø, Steven T. Murray
1909 · Very good
€25
E. V. Lucas
1909 · Very good
€65
James Fergusson
1892 · Good
€45
Lydia Maria Child
1872 · Fair
€25
Frederik Hendrik Neiszen
1935 · Fine · NL
€110
F. Max Müller
1889 · Fine
€115
Franz Sales Meyer
1934 · Very good
€40
Jan Luiken
1889 · Very good · NL
€60
E. V. Lucas
1932 · Good
€30
Lankester, E. Ray Sir
1922 · Good
€30
May Sinclair
1924 · Very good
€100