Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
John Gould
Ike Matthews
Donna P. Bessken
Joanna Baillie
Wilhelm Weltner, Ludwig Plate, F. A. Forel, W. Migula, Friedrich Ludwig, August Gruber, and Julius Vosseler
Sydney Anderson
Dennis G. Rainey and Henry S. Fitch
470 downloads
Kirk Munroe
Nuttall Ornithological Club
George Manville Fenn
United States. National Park Service
J. Hampden Porter
J. M. Campbell
Various
Edward Bevan
L. Frank Baum
Rollin H. Baker
Joseph Grinnell
George Franklyn Korinek
Frances A. Bardswell
William Wood
Williams Haynes
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.