CONTENTS: 1. Introduction; 2. Gametogenesis; 3. Discharge and Transportation of Gametes; 4. Fertilization; 5. Cleavage; 6. Morulation and Blastulation; 7. Fate Maps, Gastrulation and Tubulation; 8. Gene Action and Hormonal Control in Development; 9. Embryogenesis of a Simple Ascidian; 10. Embryogenesis of Amphioxus; 11. Embryogenesis and Metamorphosis of Frog; 12. Organogenesis of Frog; 13. Embryogenesis of Chick;14. Embryogenesis in Eutherian Mammal; 15. Transplantation, Embryonic Induction and Competence; 16. Gradient Theory; 17. Embryonic Adaptations and Placentation in Mammals; 18. Regeneration; 19. Cell Differentiation and Determination; 20. Intercellular Communication and Cell Signaling; 21. Malignancy; 22. Aging and Cell Death; 23. Metamorphosis; 24. Asexual Reproduction; 25. Parthenogenesis.