Ernst Heinrich Philipp August Haeckel
1903 · Good
€20
Nicolass Muller
1915 · Fine · NL
€35
Jean Marie Antoine Gevers Leuven
1904 · Good · NL
€20
Gelett Burgess
1900 · Fair
€50
Hilaire Belloc
1935 · Good
€45
Jacques Loeb
1918 · Good
€35
Harriet Mann Miller
1891 · Fair
€35
Edward Carpenter
1898 · Good
€45
Gilman Arthur Drew
1921 · Very good
€35
Leslie Brainerd Arey
1924 · Very good
€45
M. Buys
1935 · Good · NL
€25
Ferenc Hutyra
1916 · Good
€40
Henri Poincaré, J. McKeen Cattell
1915 · Good
€50
Frank E. Beddard
1902 · Very good
€25
Rudolf Těsnohlídek
1923 · Very good
€35
L. Th Mayer
1910 · Good · NL
€25
H. G. Wells
1911 · Very good
€40
Carl Gustav Jung
1915 · Very good
€25
Osler, William Sir
1926 · Very good
€45
Herman Gorter
1935 · Very good · NL
€40
Junk, W., firm, publishers.
1935 · Very good · NL
€40
Egerton R. Young
1913 · Fair
€20
Romain Rolland
1918 · Fine
€50
L. A. Borradaile
1935 · Good
€20
J. Haak
1928 · Very good · NL
€30
M. Joustra
1915 · Good · NL
€25
Kern, H.
1901 · Good · NL
€45
Philip Henry Gosse
1868 · Fair
€40
Annie Salomons
1923 · Very good · NL
€25
René Vallery-Radot
1903 · Very good
€35
Alpheus S. Packard
1904 · Good
€25
Ary Prins
1924 · Fair · NL
€45
Ernest Thompson Seton
1912 · Fair
€25
Charles Waterton
1863 · Good
€40
John Leslie
1861 · Fair
€50
H. Newell Martin
1903 · Fine
€40
Wilbur Pardon Bowen
1935 · Good
€50
M. Buys
1901 · Good · NL
€45
Grant Allen
1910 · Good
€40
A. Ackerman
1852 · Fair
€35
Henry Herbert Donaldson
1935 · Good
€20
Mahaffy, John Pentland Sir
1918 · Good
€50
Steven S. Zumdahl
1907 · Very good
€25
H. Newell Martin, Ernest Gale Martin
1904 · Fine
€40
Alfred Russel Wallace
1935 · Fine
€35
Neltje Blanchan
1898 · Fair
€30
Garrett Putman Serviss
1913 · Good
€35
Archibald Thorburn
1935 · Very good
€35
Jean Pauline Smith
1935 · Very good
€25
Florence Augusta Merriam Bailey
1892 · Fair
€35
H. Stanley Redgrove
1935 · Fair
€15
Bernard Boedder
1897 · Fair
€40
L. H. Bailey
1932 · Good
€20
Edmund Husserl, F. Kersten
1931 · Fair
€20
Oscar Wilde
1904 · Very good
€30
University of Chicago.
1904 · Good
€30
E. T. Whittaker, Sir William McCrae
1906 · Good
€35
T. J. Bezemer
1903 · Good · NL
€25
Harold Begbie
1913 · Good
€30
William Yarrell
1882 · Good
€45