Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Anonymous
William Walker
David Brewster
Various
Carleton Washburne
S. P. Langley
Wm. H. Meadowcroft
Hugo Magnus
Mary L. Read
Benjamin Harrow
comte Th. Du Moncel
Auguste Comte
Ernst Haeckel
F.C.S. Richard Anderson
Sir Oliver Lodge
Bertrand Russell
H. W. Conn
Dionysius Lardner and Henry Kater
Robert S. Ball
C. V. Boys
Agnes M. Clerke
George Grant
Charles Howard Hinton
John B. Rathbun
David Morrison and Jane Samz
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.