Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Joseph Bertrand
R. D. Carmichael
J. W. N. Sullivan
Lyon Des Roys
A. Schoenflies
Augustus De Morgan
Víctor José Fernández Bolívar
marquise Gabrielle Emilie Le Tonnelier de Breteuil Du Châtelet
Eleanor F. Jourdain
Ernest Lebon
J. L. Lagrange
Magnus Gustaf Mittag-Leffler
Hendrik Sluijters
Rudolf Rothe
Wilhelm Max Wundt
Jacomy-Régnier
Max Planck
James McMahon
Gertrude Lowthian Bell
Harlow Shapley and Cecilia Payne-Gaposchkin
Arthur Feldman
Hugh Blackburn
Oswald Veblen and N. J. Lennes
Sophus Lie
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.