Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Laurence Yard Smith
J. A. V. Turck
Lawrence Radiation Laboratory
Various
American School of Correspondence
Edwin A. Battison
Fred T. Hodgson and Morris Williams
George Adams
William John Tennant
Philippines. Bureau of Education
James Mercur
Richard Ferris
William Bond Wheelwright
Henry Charles Horstmann and Victor H. Tousley
Michael Geistbeck
Loudon M. Douglas
Eugene E. Wilson
K. J. Adcock
Baron Edmund Beckett Grimthorpe
John Bernard Walker
Mary Wollstonecraft Shelley
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.
