George Bourne
1935 · Very good
€45
Stone, Witmer
1905 · Fair
€20
W. H. Hudson
1935 · Very good
€25
W. H. Hudson
1935 · Good
€30
Edward Jesse
1862 · Good
€40
W. H. Hudson
1901 · Good
€25
British Ornithologists' Union
1907 · Fair
€45
Klikspaan
1935 · Fair · NL
€35
F. Matthias Alexander
1935 · Fine
€35
Arthur Cleveland Bent
1935 · Very good
€25
Eadweard Muybridge, University of Pennsylvania
1891 · Good
€35
Walter B. Cannon
1931 · Good
€20
Charles Darwin
1919 · Good
€30
Charles Benedict Davenport
1935 · Fair
€45
D. Embden
1902 · Very good · NL
€30
B. P. Ponsioen
1935 · Very good · NL
€30
C. Claus, Carl Friedrich Wilhelm Claus
1883 · Good
€40
Arabella B. Buckley
1876 · Good
€35
Mark F. Boyd
1926 · Very good
€25
L. Bautain
1911 · Good
€45
Alfred Kaestner
1904 · Very good
€35
Antwerp Edgar Pratt
1910 · Good
€40
Arabella B. Buckley
1909 · Good
€20
George Alexander Wilken
1914 · Very good · NL
€40
J. Arthur Thomson
1909 · Fine
€45
Rabindranath Tagore
1917 · Very good
€35
Arthur Schopenhauer
1868 · Good
€40
Archibald Rogers
1926 · Good
€25
Ph Spinhoven, T.K. Bouman
1908 · Very good · NL
€25
Pieter Joseph Cruse
1911 · Fine · NL
€30
Hegner, Robert William
1935 · Very good
€45
Pieter Cornelis Boutens
1916 · Very good · NL
€35
Pieter Johannes Veth
1899 · Good · NL
€45
Langdon-Brown, Walter Sir
1909 · Good
€40
Jules Bernard Luys
1909 · Good
€25
Epictetus
1920 · Good
€20
Edwin Checkley
1890 · Good
€50
Charles Darwin
1894 · Good
€45
Thompson, D'Arcy Wentworth
1931 · Fine
€35
George Bernard Shaw
1935 · Very good
€25
Guillaume Groen van Prinsterer
1903 · Fine · NL
€30
Salomon Müller
1870 · Fair · NL
€50
Nicolass Muller
1915 · Fine · NL
€35
Jean Marie Antoine Gevers Leuven
1904 · Good · NL
€20
Hilaire Belloc
1935 · Good
€45
Jacques Loeb
1918 · Good
€35
Harriet Mann Miller
1891 · Fair
€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
Rudolf Těsnohlídek
1923 · Very good
€35
Junk, W., firm, publishers.
1935 · Very good · NL
€40
Romain Rolland
1918 · Fine
€50
L. A. Borradaile
1935 · Good
€20
J. Haak
1928 · Very good · NL
€30
Kern, H.
1901 · Good · NL
€45
Philip Henry Gosse
1868 · Fair
€40
René Vallery-Radot
1903 · Very good
€35
Ary Prins
1924 · Fair · NL
€45