Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Alexander Macfarlane
Hermann Schubert
Oliver E. Glenn
Philip H. Wicksteed
Richard C. Tolman
Max Planck
Richard A. Proctor
Jacques Hadamard
M. Despeyrous
Kurt Hensel
J. Willard Gibbs
A. Frederick Collins
Arthur S. Hathaway
Maurice Godefroy
I. Todhunter
Stan Kerr
Ernst Leonard Lindelöf
Lewis Irving Neikirk
Charles Henry
Robert J. Nemiroff and Jerry T. Bonnell
Yasumasa Kanada
H. E. Timerding
Theodor Reye
Johannes Frischauf
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.