George Bourne
1935 · Very good
€45
Roy Chapman Andrews, Yvette Borup Andrews
1921 · Good
€105
Christopher Morley
1935 · Good
€30
Stone, Witmer
1905 · Fair
€20
Larry L. Mai
1925 · Very good
€65
Victor Ernest Shelford
1935 · Fair
€20
Ernest Thompson Seton
1923 · Fine
€85
Walter De la Mare
1913 · Very good
€70
Neltje Blanchan
1935 · Fair
€65
Beatrix Potter
1914 · Very good
€60
Roy Chapman Andrews
1926 · Good
€25
Alpheus S. Packard
1904 · Good
€25
Richard Lydekker
1903 · Good
€60
Ernest Thompson Seton
1929 · Fine
€35
A.G. de Bruin
1935 · Good · NL
€55
Oscar Victor Brumley
1935 · Very good
€55
J. Arthur Thomson
1909 · Fine
€45
Arthur, comte de Gobineau
1911 · Fair
€30
Frederick Spencer Chapman, CHAPMAN (F.S).
1901 · Very good
€45
British Ornithologists' Union
1907 · Fair
€45
Thomas Henry Huxley
1904 · Fair
€55
Leander Sylvester Keyser
1907 · Fine
€70
Carolyn Wells, Oliver Herford
1909 · Very good
€85
Antwerp Edgar Pratt
1910 · Good
€40
William Beebe
1922 · Very good
€60
Charles Darwin
1909 · Fine
€90
Hermann Löns
1903 · Very good · NL
€155
Charles G. D. Roberts
1923 · Very good
€25
Clara Dillingham Pierson
1935 · Fine
€125
Nederlandse Mycologische Vereniging
1918 · Fair · NL
€15
Rudyard Kipling
1935 · Very good
€25
T. Jeffery Parker
1907 · Fair
€55
Thornton W. Burgess
1924 · Fine
€80
W. H. Hudson
1924 · Good
€40
Hubert Howe Bancroft
1905 · Good
€25
Ernest Thompson Seton
1905 · Fair
€15
Rudyard Kipling
1900 · Good
€30
Eugène Pittard
1926 · Good
€20
William Beebe
1935 · Fine
€115
M. H. J. Schoenmaekers
1935 · Very good · NL
€85
Charles G. D. Roberts
1906 · Good
€30
Rubert W. Boyce
1920 · Very good
€25
George Alexander Wilken
1914 · Very good · NL
€40
Elizabeth Grinnell
1905 · Fine
€85
José Ortega y Gasset
1931 · Very good
€60
Thompson, D'Arcy Wentworth
1931 · Fine
€35
Charles Darwin
1919 · Good
€30
William Macmichael
1920 · Fair
€15
René Vallery-Radot
1903 · Very good
€35
Charles Darwin
1910 · Good
€85
Ernest Thompson Seton
1912 · Fair
€25
G. A. Wilken
1902 · Very good · NL
€100
Emile Ferrière
1909 · Fine · NL
€115
Houston Stewart Chamberlain
1902 · Good
€45
Mabel Osgood Wright
1903 · Good
€40
W. Hamilton Gibson
1914 · Fair
€15
Bradley M. Patten
1920 · Good
€30
Franz Boas
1935 · Very good
€60
George Andries Koeze
1935 · Good · NL
€55
Rudyard Kipling
1919 · Good
€50