Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
René Descartes
Claude Bernard
Charles Seignobos and Charles Victor Langlois
abbé Brasseur de Bourbourg and Diego de Landa
Adolphe Dreyspring
P. L. Jacob
Paul Otlet and Henri La Fontaine
International Institute of Bibliography
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.