Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Bertrand Russell
Ray Cummings
Niels Bohr
National Atomic Museum
United States. Army. Corps of Engineers. Manhattan District
1122 downloads
White Sands Missile Range . Public Affairs Office
Carl R. Maag and Steve Rohrer
Various
Isaac Asimov and Theodosius Dobzhansky
Isaac Asimov
John Burroughs
Arthur E. Bostwick
Charles L. Fontenay
John Dalton
647 downloads
Mary Somerville
R. S. Warren Bell and Thomas F. G. Coates
Loyce J. McIlhenny
E. W. Seabrook Hull
Ambrose Bierce
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.
