Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Archibald Williams
Library of Congress. Copyright Office
Joshua Rose
P. H. Ditchfield
Winston K. Marks
Hugo Münsterberg
Augustus De Morgan
William Harvey
Vachel Lindsay
Alice B. Emerson
Derek J. de Solla Price
Victor Appleton
Thomas Young
J. Malcolm Bird
Willis E. Tower, Charles H. Smith, Charles M. Turton, and Thomas D. Cope
Wallace Stevens
Geoffrey H. Malins
Henri Poincaré
J. Berg Esenwein and Arthur Leeds
Various
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.