"Deserves to be as widely read as were the originals when they were first published."--Biological Journal of the Linneas Society. Includes five chapters from The Origin of Speices, complete and unabridged; significant extracts from the works that precede and develop the theory of evolution: The Voyage of the Beagle, The Descent of Man, and The Variations of Animals and Plants; scientific papers, travel writings, letters,...