John Henry Comstock, Vernon L. Kellogg
1935 · Good
€105
Neltje Blanchan
1906 · Very good
€70
Charles Darwin
1910 · Good
€85
Ernest Thompson Seton
1923 · Fine
€85
Édouard Jacques Guillaume Everts
1911 · Very good · NL
€85
R. E. Snodgrass, Roger A. Morse
1933 · Fine
€70
Jean-Henri Fabre
1924 · Very good
€65
Harriet Mann Miller
1901 · Fine
€70
British Ornithologists' Union
1907 · Fair
€45
Jonathan Dwight
1905 · Very good
€120
Neltje Blanchan
1935 · Fair
€65
Arabella B. Buckley
1909 · Good
€20
Harriet Mann Miller
1933 · Very good
€45
Martin Hiesemann
1924 · Good
€20
Charles Kirk
1918 · Fair
€65
Rubert W. Boyce
1920 · Very good
€25
Campbell, Douglas Houghton
1911 · Fair
€25
Arthur Radclyffe Dugmore
1914 · Very good
€50
W. H. Hudson
1933 · Very good
€85
Archibald Thorburn
1935 · Very good
€35
Chester A. Reed
1907 · Good
€70
Oliver Davie
1904 · Good
€35
W. H. Hudson
1935 · Very good
€25
Richard Lydekker
1903 · Good
€60
Oscar Victor Brumley
1935 · Very good
€55
W. H. Hudson
1935 · Fair
€25
Spencer Fullerton Baird
1910 · Fair
€60
Eduard Daniel van Oort
1922 · Fair · NL
€80
Jameson, James S.
1913 · Good
€90
Junk, W., firm, publishers.
1935 · Very good · NL
€40
W. H. Hudson
1935 · Good
€105
Archibald Rogers
1926 · Good
€25
Charles W. Nash
1902 · Good
€25
G. Hartwig
1900 · Good
€25
Lewis Mumford
1935 · Very good
€25
Thomas Henry Huxley
1904 · Fair
€55
Carolyn Wells, Oliver Herford
1909 · Very good
€85
John Merle Coulter
1912 · Good
€55
George Bourne
1935 · Very good
€45
Jonathan Dwight
1917 · Very good
€145
Stone, Witmer
1905 · Fair
€20
E. A. Wallis Budge
1932 · Fine
€95
Edward Tuckerman
1910 · Very good
€100
American Ornithologists' Union.
1901 · Good
€25
Thomas McIlwraith
1903 · Very good
€45
William Beebe
1935 · Fine
€115
W. H. Hudson
1910 · Good
€75
Ernest Thompson Seton
1905 · Good
€35
Lankester, E. Ray Sir
1922 · Good
€30
Arthur Cleveland Bent
1935 · Very good
€25
Leander Sylvester Keyser
1907 · Very good
€35
Antwerp Edgar Pratt
1910 · Good
€40
Edwyn Sandys
1911 · Good
€25
Ernest Thompson Seton
1921 · Very good
€100
Elizabeth Grinnell
1905 · Fine
€85
Bradley M. Patten
1920 · Good
€30
Rudolf Těsnohlídek
1923 · Very good
€35
Kenneth Grahame
1935 · Good
€20
René Vallery-Radot
1903 · Very good
€35
Hans Christian Andersen, Elsa Beskow
1918 · Good
€75