Richard Owen F.R.S. (1804-92) was a controversial and influential palaeontologist and anatomist. Owen studied medicine at the University of Edinburgh and at London's St Bartholomew's Hospital. He grew interested in anatomical research, and after qualifying he became assistant conservator in the museum of the Royal College of Surgeons, and then superintendent of natural history in the British Museum. He quickly became an authority on comparative anatomy and palaeontology, coining the term 'dinosaur' and founding the Natural History Museum. He was also a fierce critic of Darwin's theory of evolution by natural selection, and engaged in a long and bitter argument with Darwin's 'Bulldog', Thomas Huxley. Published in 1868, this is the third book in a highly illustrated three-volume set that comprises a thorough overview of vertebrate anatomy. This volume completes the analysis of mammalian anatomy and includes a chapter of general conclusions.