W. H. Hudson
1935 · Very good
€25
W. H. Hudson
1901 · Good
€25
Edward Jesse
1862 · Good
€40
George Bourne
1935 · Very good
€45
Stone, Witmer
1905 · Fair
€20
W. H. Hudson
1935 · Good
€30
Ernest Thompson Seton
1929 · Fine
€35
Arthur Cleveland Bent
1935 · Very good
€25
Charles G. D. Roberts
1923 · Very good
€25
Florence Augusta Merriam Bailey
1892 · Fair
€35
Stefan Zweig
1935 · Good
€35
Wilhelm Busch
1894 · Fair
€35
Iwan Bloch
1924 · Good
€25
Hans Andersen, H. W. Dulcken
1911 · Fair
€40
D. H. Lawrence
1902 · Very good
€40
Clyde Robert Bulla, Jim Burke
1914 · Very good
€35
British Ornithologists' Union
1907 · Fair
€45
Klikspaan
1935 · Fair · NL
€35
F. Matthias Alexander
1935 · Fine
€35
J. P. Kleiweg de Zwaan
1911 · Fair · NL
€30
Victor Ernest Shelford
1935 · Fair
€20
Edward Carpenter
1906 · Good
€25
Carl Gobée
1861 · Very good · NL
€45
Eadweard Muybridge, University of Pennsylvania
1891 · Good
€35
Walter B. Cannon
1931 · Good
€20
Joseph Le Conte
1928 · Very good
€30
Charles Darwin
1919 · Good
€30
Charles Benedict Davenport
1935 · Fair
€45
Beatrix Potter
1912 · Good
€35
D. Embden
1902 · Very good · NL
€30
B. P. Ponsioen
1935 · Very good · NL
€30