First published in 1859, presents Darwin's scientific study of the process of natural selection. Illustrating his evolutionary theory and the interrelatedness of heritable variation and the evolution of humans, animals and plant life. Darwin wrote for non-specialist readers, aiding the book in reaching a wide audience. By the 1870s, Darwin's theory of evolution was commonly regarded as fact within the scientific community. The book includes his own sketches of evolution to support his theory, as well as abstracts of his experiments and research. The chapters in this volume include: Preserving a key scientific text for future generations, has been proudly republished by Read & Co. Books, featuring a specially commissioned biography of the author. An essential read for those with an interest in the groundbreaking work of Charles Darwin and the study of the history of evolution.