Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Alphonse de Candolle
J. M. Dalziel
Erasmus Darwin
P. L. Simmonds
William Saunders
Ludwig Reinhardt
Georg Forster
Eliza Frances Andrews
A. Rançon
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.