Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Hermann Weyl
Joseph Harris
David Hilbert
James Clerk Maxwell
Claude Fayette Bragdon
J. W. N. Sullivan
Henry Stevens
James Johnstone
Max Planck
Earl of George Parker Macclesfield
John Tyndall
Sir Horace Lamb
Baron William Thomson Kelvin
Archimedes
J. J. Thomson
G. H. Hardy
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.