Heber W. Youngken
1935 · Fine
€110
Carlton C. Curtis
1907 · Fine
€50
Julie Hoek
1930 · Very good · NL
€35
J. Reynolds Green
1916 · Fair
€20
Adolf Engler
1917 · Good
€25
Catherine Parr Traill
1900 · Very good
€50
John Joly
1932 · Very good
€75
Catherine Parr Traill, Agnes Chamberlin
1923 · Good
€25
Thomas Vicary
1934 · Good
€75
Yogananda Paramahansa
1931 · Fine
€125
Charles Fort
1933 · Fair
€35
Nathaniel Southgate Shaler
1915 · Fair
€30
Freda Dinn
1903 · Very good
€35
Garrett Putman Serviss
1935 · Good
€95
W. Simon
1912 · Good
€70
Dock, Lavinia L.
1905 · Good
€20
Grant Allen
1935 · Good
€75
Christiaan Lodewijk Houthuysen
1930 · Good · NL
€30
Charles Darwin
1909 · Fine
€90
Joseph Le Conte
1928 · Very good
€30
Comstock, George C.
1923 · Fair
€15
Martin Klopstock
1911 · Good
€35
Salomon Reinach
1925 · Fine
€130
Sedgwick, Adam
1915 · Very good
€95
Śāntideva
1935 · Fair
€40
Hilaire Belloc
1929 · Fine
€35
T. Jeffery Parker
1907 · Fair
€55
Percival Lowell
1907 · Very good
€25
G. Christian Hoffmann
1901 · Good
€30
Upton Sinclair
1927 · Very good
€75
Bertrand Russell
1935 · Good
€85
Eugène Pittard
1926 · Good
€20
Nederlandse Mycologische Vereniging
1918 · Fair · NL
€15
Burnett Hillman Streeter, R. Brook
1919 · Fair
€15
Walter W. Bryant
1907 · Good
€25
Alpheus S. Packard
1904 · Good
€25
Miller, William J.
1935 · Fair
€20
Catherine Parr Traill, Elizabeth Thompson
1908 · Fair
€20
John Couch Adams, J. W. L. Glaisher
1903 · Good
€30
Frank Hall Thorp
1906 · Good
€25
Maria Montessori
1931 · Good
€110
A. S. Neill
1935 · Very good
€45
Werner Spalteholz
1926 · Good
€50
Hill, Charles
1914 · Fair
€45
Lewis Foreman Day
1920 · Fine
€70
Samuel O. L. Potter
1910 · Good
€30
Morris, Henry Sir
1926 · Good
€110
William Beebe
1922 · Very good
€60
Robert T. Gunther
1923 · Fair
€75
Roger Eliot Fry
1931 · Very good
€30
J. E. Jasper
1915 · Very good · NL
€70
William Kingdon Clifford
1914 · Fair
€35
Maurice Henry Hewlett
1930 · Fair
€70
D. J. Cunningham
1935 · Very good
€80
Lafcadio Hearn
1900 · Fair
€25
Frederick Soddy
1935 · Fine
€30
Ralph W. G. Wyckoff
1935 · Very good
€30
Max Scheler
1935 · Good
€20
Plato
1917 · Good
€30
Anton Willem Nieuwenhuis
1909 · Very good · NL
€75