Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Mary Somerville
Lillian D. Wald
Horace Walpole
Various
W. H. R. Curtler
Padraic Colum
Mary Wollstonecraft Shelley
Upton Sinclair
Thomas Henry Huxley
George John Romanes
Edgar Allan Poe
Julius Sachs
Charles Darwin
Leopoldo Lugones
Augustin Fabre
B. F. Kaupp
Randall Garrett and Robert Silverberg
Henry Paul Talbot
Hope Mirrlees
Alexander Graham Bell
Algernon Blackwood
William Harmon Norton
Mary Wollstonecraft Shelley and James Montgomery
Arthur Mangin
Florence Nightingale
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.