F. S. Macaulay
1922 · Fine
€135
Bertrand Russell
1916 · Good
€80
Alfred North Whitehead, Bertrand Russell
1911 · Very good
€25
P. Wijdenes
1932 · Very good · NL
€60
Ron Larson
1906 · Good
€45
Hermann Cäsar Hannibal Schubert
1927 · Good
€65
Louis Couturat
1935 · Good
€70
Bertrand Russell
1932 · Very good
€90
Herbert E. Cobb
1935 · Very good
€30
Karl Fink
1904 · Very good
€40
Alfred North Whitehead
1921 · Good
€20
Felix Klein
1909 · Good
€80
Ron Larson
1931 · Fair
€20
Edouard Goursat
1933 · Very good
€30
J. T. Crawford
1923 · Good
€25
E. T. Whittaker, G. N. Watson
1920 · Fine
€75
Henry Lewis Rietz
1929 · Fair
€30
Balfour Stewart
1919 · Good
€20
Bertrand Russell
1935 · Good
€85
E. R. Hedrick
1920 · Very good
€60
Augustin Privat-Deschanel
1903 · Very good
€40
Emmanuel Levinas
1935 · Good
€35
Felix Klein
1926 · Very good
€35
C. Bruhns
1920 · Very good
€55
Richard Courant
1927 · Good
€35
I. A. Kapandji
1919 · Very good
€85
Karl Pearson
1934 · Fine
€30
William Kingdon Clifford
1914 · Fair
€35
Erwin Madelung
1935 · Fine
€40
Henri Poincaré, Nicolae Sfetcu
1919 · Very good
€100
Florian Cajori
1907 · Very good
€45
Arthur B. Curtis
1929 · Fine
€60
Florian Cajori
1929 · Good
€65
Henri Bergson
1919 · Very good
€35
Aristotle
1901 · Good
€70
Grant Allen
1910 · Good
€40
E. F. B. Fell
1909 · Good
€75
F. Matthias Alexander
1935 · Fine
€35
Alfred A. Robb
1935 · Very good
€55
A. S. Neill
1935 · Very good
€45
Carl Joseph West
1920 · Very good
€45
Norman Robert Campbell
1907 · Good
€30
Henry Sinclair Hall, Samuel R. Knight
1904 · Fine
€30
J. G. Leathem
1919 · Fair
€15
Peter Kropotkin
1931 · Very good
€60
Max Born
1935 · Good
€25
William Anthony Granville
1905 · Very good
€50
Plotinus
1916 · Good
€75
G. H. Hardy, T. W. Körner
1935 · Very good
€25
Wilmore, Albert.
1921 · Good
€35
Arthur Gordon Webster
1935 · Good
€20
G. H. Hardy, J. G. Leathem
1916 · Fine
€35
R. Fletcher
1922 · Good
€20
Sir J. J. Thomson
1907 · Good
€25
Silvanus Phillips Thompson
1935 · Very good
€35
G. N. Watson
1935 · Good
€20
Edmund Husserl
1913 · Good
€45
Augustus De Morgan
1903 · Very good
€60
William Ledley Vosburgh
1918 · Very good
€90
Ron Larson, Roland E. Larson
1920 · Fair
€55