George Bourne
1935 · Very good
€45
Stone, Witmer
1905 · Fair
€20
Ernest Thompson Seton
1923 · Fine
€85
William Beebe
1935 · Fine
€115
Jones, Thomas Rymer
1879 · Very good
€95
W. H. Hudson
1935 · Very good
€25
W. H. Hudson
1935 · Good
€30
Edward Jesse
1862 · Good
€40
British Ornithologists' Union
1868 · Good
€105
W. H. Hudson
1901 · Good
€25
Larry L. Mai
1925 · Very good
€65
Robert Chambers
1852 · Good
€160
Neltje Blanchan
1935 · Fair
€65
British Ornithologists' Union
1907 · Fair
€45
Walter W. Skeat, Charles Otto Blagden
1924 · Good
€65
Klikspaan
1935 · Fair · NL
€35
F. Matthias Alexander
1935 · Fine
€35
Jean Louis Rodolphe Agassiz
1870 · Very good
€70
Arthur Cleveland Bent
1935 · Very good
€25
A. Pierson
1875 · Very good · NL
€140
Eadweard Muybridge, University of Pennsylvania
1891 · Good
€35
Edward Hamilton Aitken
1881 · Good
€105
Marion Lowell
1897 · Good
€55
Multatuli
1878 · Good · NL
€115
Walter B. Cannon
1931 · Good
€20
McDougall, William
1917 · Fine
€100
Charles Darwin
1919 · Good
€30
Charles Benedict Davenport
1935 · Fair
€45
D. Embden
1902 · Very good · NL
€30
Robert Chambers
1867 · Good
€120
B. P. Ponsioen
1935 · Very good · NL
€30
M. Büsgen
1897 · Good
€65
Charles Hamilton Smith
1850 · Very good
€60
Chauveau, A.
1873 · Good
€70
Carolyn Wells, Oliver Herford
1909 · Very good
€85
C. Claus, Carl Friedrich Wilhelm Claus
1883 · Good
€40
David Beveridge
1892 · Very good
€55
Ernest Thompson Seton
1899 · Good
€95
Arlo Bates
1904 · Fine
€110
Oscar Victor Brumley
1935 · Very good
€55
Emile Ferrière
1909 · Fine · NL
€115
Arabella B. Buckley
1876 · Good
€35
Jonathan Pereira
1880 · Good · NL
€110
W. H. Hudson
1933 · Very good
€85
Mark F. Boyd
1926 · Very good
€25
James Bissett Pratt
1935 · Very good
€70
L. Bautain
1911 · Good
€45
Alfred Kaestner
1904 · Very good
€35
Antwerp Edgar Pratt
1910 · Good
€40
Sanborn Tenney
1868 · Fair
€75
Emma Phipson
1887 · Very good
€100
Johann Gottlieb Fichte
1910 · Very good
€60
W. Vrolik
1886 · Fair · NL
€55
Aristophanes
1892 · Good
€55
John George Wood
1896 · Very good
€200
Aristophanes
1853 · Very good
€110
Richard von Krafft-Ebing, Krafft/
1892 · Fine
€215
Arabella B. Buckley
1909 · Good
€20
George Alexander Wilken
1914 · Very good · NL
€40
J. Arthur Thomson
1909 · Fine
€45