This carefully crafted ebook: 'On the Origin of Species, 6th Edition + On the Tendency of Species to Form Varieties (The Original Scientific Text leading to 'On the Origin of Species')' is formatted for your eReader with a functional and detailed table of contents. This work of scientific literature is considered to be the foundation of evolutionary biology. Its full title was On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life. ...