Subject
5 free books about mars (planet), free to read online. Chapter 1 of any book is free, no account needed.
Mars and Its Canals
Percival Lowell
La Vita Sul Pianeta Marte
G. V. Schiaparelli
Is Mars habitable? A critical examination of Professor Percival Lowell's book "Mars and its canals," with an alternative explanation
Alfred Russel Wallace
Mars and Its Mystery
Edward Sylvester Morse
The Destinies of the Stars
Svante Arrhenius
