Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Aletta H. Jacobs
J. H. van 't Hoff
active 18th century J. D. Herlein
active 1896-1920 P. Teunissen
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.