Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Francis Donovan
W. L. H. Duckworth
Friedrich Christian Accum
Various
William Garnett
Fritz Leiber
Herbert Newton Casson
John Dalton
Elisée Reclus
Benjamin Franklin
Thomas Henry Huxley
H. G. Adams
Auguste Forel
United States. National Aeronautics and Space Administration
Jules Verne
Thomas Packer
Gerrit Parmile Wilder
C. C. MacApp
Hugh Miller
Gamaliel Bradford
N. M. Stevens
Leonhard Rauwolf and John Ray
Hugh Garner Bennett
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.
