Camille Flammarion
1887 · Fine
€80
Amédée Guillemin
1886 · Very good
€205
Galileo Galilei
1664 · Very good
€2,345
W. Brennand
1903 · Very good
€70
John Joly
1932 · Very good
€75
John Burroughs
1886 · Very good
€200
Percival Lowell
1907 · Very good
€25
Guy Consolmagno, Dan M. Davis
1766 · Very good
€810
Yogananda Paramahansa
1931 · Fine
€125
John Bentley
1836 · Very good
€120
Robert Ellis, F.L.S.
1852 · Very good
€110
John Frederick William Herschel
1856 · Very good
€55
Elias Loomis
1902 · Fine
€55
Aristotle
1561 · Very good
€915
Heindel, Max, Max Heindel
1918 · Very good
€30
Jeremias Drexel
1684 · Very good
€1,420
Royal Astronomical Society
1879 · Very good
€80
Albert Verwey
1916 · Very good · NL
€55
Gerrard Hickson
1922 · Very good
€35
Thomson, Thomas
1802 · Very good
€160
J. H. Poynting
1922 · Very good
€35
Elias Loomis
1883 · Very good
€120
Michael Faraday
1874 · Fine
€65
Alfred A. Robb
1935 · Very good
€55
Jules Verne
1888 · Very good
€50
Wood, Robert Williams
1919 · Fine
€40
Henry S. Carhart
1929 · Very good
€85
William Derham
1722 · Fine
€450
Denison Olmsted
1880 · Very good
€135
O. M. Mitchel
1892 · Very good
€55
A. Oliver
1795 · Fine
€480
William Cecil Dampier
1930 · Very good
€60
William Thomson Kelvin
1889 · Very good
€165
Édouard Mailly
1887 · Very good
€45
Carl Friedrich Gauss
1817 · Fine
€130
William Houston Greene
1884 · Very good
€80
Charles John Holmes
1935 · Very good
€35
George Frederick Kunz
1935 · Very good
€40
James Ferguson
1760 · Very good
€280
A. Wilmer Duff
1916 · Very good
€65
Frederick Soddy
1935 · Fine
€30
James Ferguson
1765 · Very good
€805
Jan Valckenier Suringar
1935 · Very good · NL
€95
William Cullen
1801 · Very good
€165
J. H. Poynting
1916 · Very good
€45
孙武 (Sun Tzu)
1931 · Very good
€25
John Conduitt
1733 · Very good
€665
Gaylord Johnson
1935 · Very good
€60
Jules Michelet
1869 · Very good
€140
Jacob Haafner
1851 · Very good · NL
€85
William Addison Blakely
1892 · Very good
€100
Augustin Privat-Deschanel
1903 · Very good
€40
Caleb Bingham
1806 · Fine
€180
John Erichsen
1860 · Very good
€90
J. J. Fahie
1910 · Fine
€80
Vernon Lee
1914 · Very good
€45
Louis Couperus
1895 · Fine · NL
€65
John Timbs
1871 · Very good
€70
C. S. Sonnini, Charles N. De Manoncourt
1845 · Fine
€135
Balfour Stewart
1875 · Very good
€120