Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Various
Sir E. Ray Lankester
Johan Winkler
J. A. Harvie-Brown and John Cordeaux
P. Martin Duncan
Lee R. Dice
William J. Long
J. Ritzema Bos
William Barry Lord
Charles Dickens
William Alexander Fraser
John Caius
Eduard Philibert Assmuss
Friedrich von Lucanus
John Bernard Daley
David Garnett
Frances Power Cobbe
Thomas Garnett
Joseph Grinnell
Norman Asa Wood
Kurt Floericke
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.