O. M. Mitchel
1852 · Good
€45
Simon Newcomb
1903 · Good
€45
Elijah H. Burritt
1866 · Good
€60
Alexander von Humboldt
1858 · Good
€110
Camille Flammarion
1887 · Fine
€80
Amédée Guillemin
1886 · Very good
€205
Richard A. Proctor
1918 · Good
€50
Elijah H. Burritt
1862 · Good
€125
Simon Newcomb
1917 · Good
€20
Denison Olmsted
1881 · Good
€100
Heindel, Max, Max Heindel
1918 · Very good
€30
Robert Ellis, F.L.S.
1852 · Very good
€110
Arthur P. Norton, J. Gall Inglis
1935 · Good
€20
Alfred Russel Wallace
1908 · Very good
€85
Elias Loomis
1902 · Fine
€55
Elias Loomis
1854 · Good
€105
Frederick Orpen Bower
1935 · Good
€35
William Chauvenet
1899 · Very good
€45
Simon Newcomb
1910 · Good
€20
Asa Gray
1871 · Very good
€120
William Thomson Kelvin
1889 · Very good
€165
George L. Hosmer
1927 · Good
€65
William Thoms
1862 · Good
€115
John Harris
1876 · Very good
€85
W. Brennand
1903 · Very good
€70
Agnes M. Clerke
1885 · Good
€45
Alexander von Humboldt
1876 · Very good
€150
G. Hartwig
1900 · Good
€25
Plato
1859 · Good
€80
Charles Darwin
1910 · Good
€85
John William Norie
1886 · Good
€50
Dionysius Lardner
1852 · Good
€110
J. Haak
1928 · Very good · NL
€30
Albert Verwey
1916 · Very good · NL
€55
William Thomson Kelvin, Peter Guthrie Tait
1884 · Very good
€115
Alfred A. Robb
1935 · Very good
€55
Jean-Henri Fabre
1924 · Very good
€65
John Timbs
1871 · Very good
€70
Marion Lowell
1897 · Good
€55
Julius Adolph Stöckhardt
1876 · Good
€55
Anton Kerner von Marilaun
1914 · Good
€65
Balfour Stewart
1875 · Very good
€120
Snyder, Harry
1925 · Good
€20
Jacob Abbott
1862 · Very good
€115
Thomas Henry Huxley
1904 · Good
€35
Neltje Blanchan
1906 · Very good
€70
William C. McC Lewis
1935 · Good
€30
A. Privat-Deschanel
1889 · Good
€55
A. Privat-Deschanel
1875 · Very good
€80
Mary Somerville
1863 · Good
€170
J. H. Poynting
1922 · Very good
€35
H. B. Spotton
1882 · Good
€50
Édouard Mailly
1887 · Very good
€45
Thomas Ruggles Pynchon
1878 · Very good
€240
Worthington Hooker
1865 · Good
€50
M.E. Schlesinger
1919 · Very good
€70
J. J. Fahie
1910 · Fine
€80
Steven S. Zumdahl
1907 · Very good
€25
Max Born
1935 · Good
€25
J. B. Rietstap
1876 · Good · NL
€55