Frederik Paul Penard
1914 · Very good · NL
€85
Leander Sylvester Keyser
1907 · Fine
€70
Archibald Thorburn
1935 · Very good
€35
Mabel Osgood Wright
1903 · Good
€40
Jan Valckenier Suringar
1935 · Very good · NL
€95
Charles G. D. Roberts
1923 · Very good
€25
Édouard Jacques Guillaume Everts
1911 · Very good · NL
€85
Dillon Wallace
1919 · Very good
€85
Ernst Heinrich Philipp August Haeckel
1911 · Very good
€110
Eduard Daniel van Oort
1922 · Fair · NL
€80
Thomas McIlwraith
1903 · Very good
€45
H. A. J. van Swaay
1919 · Good · NL
€35
Chester A. Reed
1907 · Good
€70
George Alexander Wilken
1914 · Very good · NL
€40
Frank E. Beddard
1902 · Very good
€25
Elizabeth Grinnell
1905 · Fine
€85
Juliana Horatia Gatty Ewing
1927 · Good
€20
Emile Ferrière
1909 · Fine · NL
€115
British Ornithologists' Union
1907 · Fair
€45
Frederik Carel Gerretson
1927 · Good · NL
€70
D. Embden
1902 · Very good · NL
€30
Charles Darwin
1910 · Good
€85
Charles Kirk
1918 · Fair
€65
W. H. Hudson
1910 · Good
€75
Carolyn Wells, Oliver Herford
1909 · Very good
€85
Charles Fort
1933 · Fair
€35
American Ornithologists' Union.
1901 · Good
€25
Charles Darwin
1909 · Fine
€90
Herbert Eugene Walter, Alice Hall Walter
1920 · Good
€65
Victor Ernest Shelford
1935 · Fair
€20
Oliver Davie
1904 · Good
€35
Alfred Kaestner
1904 · Very good
€35
Lucy Maud Montgomery
1935 · Good
€45
Alfred Russel Wallace
1907 · Good
€45
Hezekiah Butterworth
1912 · Good
€85
Gontran de Poncins, Lewis Galantière
1933 · Fair
€40
Edwyn Sandys
1911 · Good
€25
Charles W. Nash
1902 · Good
€25
John Burroughs
1905 · Fair
€55
Jonathan Dwight
1905 · Very good
€120
Lankester, E. Ray Sir
1925 · Very good
€60
Antwerp Edgar Pratt
1910 · Good
€40
Hélène Swarth
1921 · Good · NL
€30
W. H. Hudson
1933 · Very good
€85
Neltje Blanchan
1906 · Very good
€70
Sir Francis Galton
1923 · Good
€20
Spencer Fullerton Baird
1910 · Fair
€60
Wouter Hendrik Van Seters
1935 · Good · NL
€50
British National Antarctic Expedition (1901-1904)
1912 · Good
€75
Marcellus Emants
1900 · Very good · NL
€25
Marcellus Emants
1904 · Good · NL
€20
Ernest Thompson Seton
1929 · Fine
€35
J. H. Walsh
1922 · Very good
€115
Garrett Putman Serviss
1913 · Good
€35
John Galsworthy
1928 · Very good
€75
L. A. Borradaile
1935 · Good
€20
Charles Wardell Stiles
1914 · Fair
€25
Stone, Witmer
1905 · Fair
€20
Thomas Henry Huxley
1904 · Fair
€55
W. Hamilton Gibson
1914 · Fair
€15