Ernest Thompson Seton
1923 · Fine
€85
Stone, Witmer
1905 · Fair
€20
Victor Ernest Shelford
1935 · Fair
€20
Ernest Thompson Seton
1929 · Fine
€35
George Bourne
1935 · Very good
€45
Hermann Löns
1903 · Very good · NL
€155
Oscar Victor Brumley
1935 · Very good
€55
Ernest Thompson Seton
1905 · Fair
€15
Neltje Blanchan
1935 · Fair
€65
Charles G. D. Roberts
1923 · Very good
€25
Carolyn Wells, Oliver Herford
1909 · Very good
€85
Rudyard Kipling
1935 · Very good
€25
J. Arthur Thomson
1909 · Fine
€45
Sedgwick, Adam
1915 · Very good
€95
Ferenc Hutyra
1916 · Good
€40
Dillon Wallace
1919 · Very good
€85
Charles Kirk
1918 · Fair
€65
T. Jeffery Parker
1907 · Fair
€55
Kenneth Grahame
1935 · Good
€20
Clara Dillingham Pierson
1900 · Very good
€50
O. Charnock Bradley
1922 · Fair
€55
Richard Lydekker
1903 · Good
€60
Joaquin Miller
1903 · Good
€110
Mabel Osgood Wright
1903 · Good
€40
Alfred Newton
1935 · Good
€75
Leander Sylvester Keyser
1907 · Fine
€70
Clara Dillingham Pierson
1935 · Fine
€125
Richard Thayer Holbrook
1919 · Very good
€70
Thornton W. Burgess, George Kerr
1925 · Very good
€125
Frederick Smith
1935 · Good
€45
Ernest Thompson Seton
1912 · Fair
€25
Snyder, Harry
1925 · Good
€20
L. A. Borradaile
1935 · Good
€20
Ludwig Bemelmans
1927 · Good
€20
Rudyard Kipling
1901 · Very good
€50
Charles W. Nash
1902 · Good
€25
Archibald Thorburn
1935 · Very good
€35
Charles Darwin
1909 · Fine
€90
Arthur Cleveland Bent
1935 · Very good
€25
W. H. Hudson
1933 · Very good
€85
Kenelm Winslow
1911 · Good
€90
Charles G. D. Roberts
1906 · Good
€30
J. H. Walsh
1922 · Very good
€115
British Ornithologists' Union
1907 · Fair
€45
Alfred Kaestner
1904 · Very good
€35
W. H. Hudson
1935 · Good
€30
W. H. Hudson
1935 · Very good
€25
Bradley M. Patten
1920 · Good
€30
Rudolf Těsnohlídek
1923 · Very good
€35
Thornton W. Burgess, Harrison Cady
1935 · Good
€50
Neltje Blanchan
1906 · Very good
€70
Thornton W. Burgess
1935 · Fine
€115
Chester A. Reed
1907 · Good
€70
George Santayana
1935 · Very good
€75
Henry Herbert Donaldson
1935 · Good
€20
Arabella B. Buckley
1909 · Good
€20
Thomas Henry Huxley
1904 · Fair
€55
United States. Bureau of Animal Industry
1927 · Very good
€70
Martin Hiesemann
1924 · Good
€20
John Reid Muir
1930 · Good
€45