Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Isaac Asimov and Theodosius Dobzhansky
Marie Curie
A. Frederick Collins
Margaret Penrose
Ralph Milne Farley
Wilhelm Bölsche
H. S. Norrie
Gerald Breckenridge
Frank Honeywell
Allen Chapman
Lewis E. Theiss
W. Mattieu Williams
Anonymous
Henry Fisk Carlton
Ralph Henry Barbour
William Le Queux
Inc. Columbia Broadcasting System and United States. Office of Education
John Mills
Ernest Rutherford
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.