Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
H. G. Wells
United States. War Department and Benedict Crowell
Sir Walter Alexander Raleigh
Charles Amory Beach
Willis J. Abbot
Gerald Featherstone Knight
Frederick Arthur Ambrose Talbot
George Whale
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Cyril Field
Harry Vissering
Dan Breen
William J. Claxton
Lewis R. Freeman
Hugh Allen
Eugene E. Wilson
Charles W. Domville-Fife
Herbert Eugene Ives
2nd. Altitude Indoctrination Unit United States. Army Air Forces. Air Force
United States. Air Force
Henry Bordeaux
Claude Grahame-White and Harry Harper
Gilbert Frankau
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.