This book is a collection of essays by two of the most important naturalists of the 18th and 19th centuries. John Hunter was a pioneering anatomist and surgeon, while Richard Owen was a leading paleontologist and comparative anatomist. Together, they explore a wide range of topics in natural history, from the structure of the human body to the evolution of species. Their insights and discoveries continue to influence our understanding of the natural world today. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.