TABLE OF CONTENTS 



PAGE 



Preface vu 



CHAPTER 



I. Introduction 1 



II. The Origin of the Definitive Ova 5 



III. The Growth of the Ovum 32 



IV. The Development and Atresia of Full-Grown Ova and 



the Problem of Ovarian Parthenogenesis ... 42 



V. Methods Employed in the Experimental ]\Ianipula- 



tion of ^Mammalian Ova 62 



VI. The Tubal History of Unfertilized Eggs .... 68 



VIL Fertilization and Cleavage 75 



VIII. The Activation of Unfertilized Eggs 98 



IX. The Growth and Implantation of the Blastodermic 



Vesicle 112 



X. Summary and Recapitulation 128 



Bibliography 131 



Author Index 155 



Subject Index 159 



IX 



