Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Sir J. A. Fleming
Chautauqua Institution and Chautauqua Literary and Scientific Circle
James Means
Dillon Wallace
Henry Fleetwood
John Ayrton Paris
Francis A. Collins
Clarence Hawkes
W. Mattieu Williams
Various
Sir Oliver Lodge
Benjamin Franklin
William Whiston and Francis Hauksbee
James Runciman
George Manville Fenn
G. E. Mitton
Grace S. Richmond
John Perry
Thomas Wright
Norman Duncan
Charles Kingsley
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.