Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Asa Gray
Carl von Linné
Agnes Robertson Arber
Julius Sachs
Neltje Blanchan
Watkin Tench
Erasmus Darwin
Charles Darwin
Jacob Joshua Levison
P. L. Simmonds
A. C. Seward
Norman Taylor
Esther Singleton
A. F. W. Schimper, Eduard Strasburger, Fritz Noll, and H. Schenck
George Henry Tilton
Douglas Houghton Campbell
Amelia Young
George Francis Atkinson
W. J. Beal
Edward John Waring
Eugenius Warming
J. J. Grandville
Alexander von Humboldt
These books are free to read. Each is in the public domain in the United States; check your own country's rules before you copy or share one.