Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Sir Ernest Henry Shackleton
Charles Darwin
Jules Verne
J. W. Langeler and L. A. C. M. Doorman
Johannes François Snelleman
S. Lagrange
Roald Amundsen
Wladyslaw Uminski
Charles Boissevain
Pieter Louwerse
Alf Trolle
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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.