Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Florence Nightingale
William T. Jeans
George C. Clarke
Richard Ferris
Anonymous
John Murray
Henry Dircks
Lawrence Radiation Laboratory
Charles M. Horton
Murray Leinster
Various
Simon Lake
685 downloads
John Bernard Walker
John Wesley Powell, Grove Karl Gilbert, Clarence E. Dutton, A. H. Thompson, and Willis Drummond
John A. Hill and Jasper Ewing Brady
N. Hawkins
William A. Mowry and Arthur May Mowry
George E. Gee
William Bond Wheelwright
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.