Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
George E. Howard
Fred B. Millett
David E. Lantz
George M. Warren
Nuttall Ornithological Club
Anonymous
Fergus Hume
Dwight R. Crandell
Various
F. E. L. Beal
F. C. Bishopp
Frederick Malcolm Knapp
Floyd Rowe Watson
American National Red Cross
Caroline Louisa Hunt and C. F. Langworthy
James Paul Chapin
Theobald Smith
Caroline Clifford Newton
Nathan Banks
Alice Henkel
Eric B. Wilson
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.