xxiii, 810 pages, 100 variously numbered pages ; 29 cm
CONTENT
Part I. Patterns and processes of becoming : a framework for understanding animal development -- Part II. Gametogenesis and fertilization : the circle of sex -- Part III. Early development : cleavage, gastrulation, and axis formation -- Part IV. Building with ectoderm : the vertebrate nervous system and epidermis -- Part V. Building with mesoderm and endoderm : organogenesis -- Part VI. Postembryonic development -- Part VII. Development in wider contexts