Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Robert Hooke
Fitz James O'Brien
Jabez Hogg
Mary Somerville
George Adams
Walter S. Colman
J. G. Wood
Samuel Wells, Mary Treat, and Frederick Leroy Sargent
Henry James Slack
C. A. Ealand
Andrew Ross
Ernst Leitz
J. W. Griffith
Hermann Hager
Philipp Stöhr
Sylvester Marsh
Henry Scherren
Thomas Davies
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.