Frederick A. Ober
1883 · Fair
€30
Florian Cajori
1907 · Very good
€45
W. W. Rouse Ball
1901 · Fair
€30
W. W. Rouse Ball
1909 · Good
€30
Guy Le Strange
1890 · Fair
€45
J. M. Le Moine
1868 · Fair
€25
Percival Lowell
1907 · Very good
€25
R. G. Collingwood
1929 · Good
€35
Joseph Pennell
1915 · Very good
€50
Herbert E. Cobb
1935 · Very good
€30
Lewis Mumford
1935 · Very good
€25
Karl May, K. May
1886 · Very good
€50
Erwin Madelung
1935 · Fine
€40
John Francis Campbell
1865 · Good
€50
Bumpus, T. Francis
1906 · Fair
€45
Mahaffy, John Pentland Sir
1918 · Good
€50
Carl David Tolmé Runge
1916 · Fine
€50
Wilmore, Albert.
1921 · Good
€35
G. H. Hardy, T. W. Körner
1935 · Very good
€25
Thomas Mann
1928 · Very good
€45
Claude Irwin Palmer
1912 · Good
€20
Theun de Vries
1935 · Good · NL
€20
Hamilton Wright Mabie
1901 · Fair
€35
Mabel Osgood Wright
1903 · Good
€40
Joseph Jacobs
1904 · Good
€25
Nathaniel Southgate Shaler
1915 · Fair
€30
Garrett Putman Serviss
1913 · Good
€35
Charles John Holmes
1935 · Very good
€35
Willem Jan Maria Westerwoudt
1915 · Fine · NL
€40
Alfred North Whitehead
1921 · Good
€20
Dirk Hudig
1908 · Very good · NL
€25
Annie Salomons
1935 · Good · NL
€20
Thomas Henry Huxley
1904 · Good
€35
Arthur Gordon Webster
1935 · Good
€20
Mackinder, Halford John Sir
1922 · Very good
€35
Carl Joseph West
1920 · Very good
€45
N. Hofmeyr
1913 · Very good · NL
€50
J.L. Beijers (Firm)
1928 · Very good · NL
€40
Charles Fletcher Lummis
1902 · Very good
€25
James Joseph Sylvester
1927 · Good
€30
Maurice Henry Hewlett
1926 · Fine
€45
Robert Louis Stevenson
1906 · Fair
€20
Petrus Mathias Snickers
1880 · Fair · NL
€45
Haldane Macfall
1935 · Very good
€50
Gerlof van Vloten
1901 · Fair · NL
€15
Charles Dickens
1884 · Very good
€45
Sargent, Charles Sprague
1905 · Good
€20
James Fergusson
1892 · Good
€45
L. A. Waterbury
1913 · Fine
€45
Parmenides.
1902 · Fair
€35
Robert W. Service
1909 · Very good
€40
Robert W. Chambers
1935 · Good
€30
Bayard Taylor
1878 · Good
€50
Howell, Thomas
1909 · Very good
€30
T. Sundara Rao
1905 · Fair
€15
Hilaire Belloc
1935 · Good
€45
Richard Courant
1927 · Good
€35
James Allanson Picton
1911 · Good
€20
Otto Haab
1900 · Very good
€30
G. A. Henty
1909 · Very good
€25