La Place de l'homme dans la nature

Evidence as to Man's Place in Nature is an 1863 book by Thomas Henry Huxley, in which he gives evidence for the evolution of humans and apes from a common ancestor. It was the first book devoted to the topic of human evolution, and discussed much of the anatomical and other evidence. Backed by this evidence, the book proposed to a wide readership that evolution applied as fully to man as to all other life. In the 18th century Linnaeus and others had classified man as a primate, but without drawing evolutionary conclusions. It was Lamarck, the first to develop a coherent theory of evolution, who, in his book Philosophie zoologique, discussed human evolution in this context, but without acknowledging common ancestry. Robert Chambers in his anonymous Vestiges also suggested the point. The book came five years after Charles Darwin and Alfred Russel Wallace announced their theory of evolution by means of natural selection, and four years after the publication of Darwin's Origin of Species. In the Origin Darwin had deliberately avoided tackling human evolution, but left a gnomic trailer: "Light will be thrown on the origin of man and his history". Darwin's sequel came eight years later, with The Descent of Man, and Selection in Relation to Sex (1871). I. On the natural history of the man-like Apes p1–56. This contains a summary of what was known of the great apes at that time. II. On the relations of Man to the lower animals p57–112. This chapter and its addendum contained most of the controversial material, and is still important today. Addendum: A succinct history of the controversy respecting the cerebral structure of Man and the apes p113–118 (set in a smaller font). III. On some fossil remains of Man p119–159. A neanderthal skull-cap and other bones had been found, and various remains of early Homo sapiens. Huxley compares these remains with existing human races. As Huxley said in his Advertisement of the Reader, most of the content of his book had been presented to the public before: "The greater part of the following essays has already been published in the form of Oral Discourses, addressed to widely different audiences, during the past three years.