This comprehensive text is an essential resource for students and researchers interested in the development of vertebrate embryos. Starting with the basics of fertilization and gastrulation, the book covers morphogenesis, organogenesis, and the formation of body systems. An emphasis is placed on comparative embryology, highlighting similarities and differences between species. The book also includes numerous illustrations and diagrams to aid in understanding. 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.