Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Roberts Beaumont
William Le Queux
Camille Flammarion
Ticul Alvarez
Robert Paltock
P. Gerald Sanford
Louis Berman
Félix Nadar
Various
Mack Reynolds
Harold L. Goodwin
W. Mattieu Williams
Charles Howard Hinton
Edgar Rice Burroughs
Jean-Henri Fabre
William Edward Duellman
Joseph Harris
Alfred Powell Morgan
James Causey
William Swainson
Charles A. Oliver
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.