Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
W. E. Dickson
Henry A. Gardner
Silvio A. Bedini
2nd. Altitude Indoctrination Unit United States. Army Air Forces. Air Force
Anonymous
John Loudon McAdam
Hiram S. Maxim
Howard Irving Chapelle
Mrs. Marcet and Thomas P. Jones
Various
N. M. Stevens
Angus Sinclair
H. D. Trounce
Arthur Henry Chamberlain
Alfred Powell Morgan
Mary Somerville
Frank H. Spearman
615 downloads
James H. Brace and Francis Mason
Charles A. Bramble
Robert Willis
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.