Samuel William Johnson
1877 · Good
€100
Vries, Hugo de
1803 · Very good · NL
€235
Christiaan Lodewijk Houthuysen
1930 · Good · NL
€30
Sir Humphry Davy
1827 · Good
€85
Goff, E. S.
1899 · Very good
€70
Grant Allen
1897 · Good
€80
Carl Linnaeus
1784 · Very good
€405
J. Reynolds Green
1916 · Fair
€20
Carlton C. Curtis
1907 · Fine
€50
Adolf Engler
1917 · Good
€25
A. J. Downing
1867 · Fair
€75
John Ruskin
1808 · Fair
€145
Sturm, Christoph Christian
1815 · Very good
€95
Julie Hoek
1930 · Very good · NL
€35
Priscilla Wakefield
1825 · Good
€140
Daniel Oliver
1872 · Good
€65
Jan van der Groen
1679 · Fine · NL
€1,250
Nehemiah Grew
1681 · Fair
€785
Justus von Liebig, J. von Liebig
1845 · Fair
€105
Asa Gray
1891 · Good
€80
Friedrich Anton Wilhelm Miquel
1850 · Very good · NL
€250
Jacob Abbott
1859 · Good
€65
Grant Allen
1935 · Good
€75
Jedidiah Morse
1802 · Very good
€130
Miller, Philip
1740 · Good
€675
Sir James Edward Smith
1811 · Good
€275
Asa Gray
1889 · Very good
€115
Karl Ludwig Blume
1843 · Very good · NL
€165
Lazzaro Spallanzani
1778 · Very good
€545
Catherine Gore
1839 · Very good
€120
Robert Hooke
1672 · Very good
€770
André Michaux
1811 · Fair
€140
Carl Linnaeus
1751 · Good
€495
Alexander Wilson
1825 · Good
€175
Heber W. Youngken
1935 · Fine
€110
Charles Darwin
1909 · Fine
€90
C. L. van der Burg
1888 · Fine · NL
€65
John Wesley
1796 · Very good
€575
Moyse Charas
1677 · Very good
€1,080
Frank Hall Thorp
1906 · Good
€25
Alpheus S. Packard
1904 · Good
€25
Catherine Parr Traill, Agnes Chamberlin
1923 · Good
€25
William Morris
1900 · Good
€30
John Evans
1798 · Good
€470
Johan Carl Krauss
1802 · Good · NL
€155
Jean-Jacques Rousseau
1800 · Good
€285
Carolus Tuinman
1727 · Good · NL
€290
James Lind
1786 · Good
€360
Eugène Pittard
1926 · Good
€20
Moses of Khoren, Moses
1740 · Fair
€265
Willem Usselincx
1630 · Good · NL
€520
Plato
1889 · Good
€60
Álvar Núñez Cabeza de Vaca, Martin A. Favata
1769 · Good
€210
Ralph Waldo Emerson
1893 · Fair
€90
Walker, Robert
1779 · Very good
€360
Marston Bates
1628 · Very good
€645
Clara Dillingham Pierson
1900 · Very good
€50
Garth, Samuel Sir
1701 · Good
€205
C. A. Johns
1867 · Good
€105
Thomas Hawkes Tanner
1878 · Good
€185