Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Viscount James Bryce Bryce
John Haslam
Ritter von Eduard Hofmann
Johann Ludwig Casper
Stanley B. Atkinson
Franz von Ney
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.