Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Frederick Law Olmsted
Eula Whitehouse
Billy Dixon
John Woodhouse Audubon
Rex Beach
Mody C. Boatright
Bradford Torrey
F. G. De Fontaine
Various
Jules Verne
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.