Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Isaac Newton
Christiaan Huygens
John Henry Pepper
Thomas Young
Bertha May Clark
Denison Olmsted
Jules Vallès
Frank Thomas Bullen
Daniel Woolf
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.