CONTENTS OF VOLUME I.
Introduction. Pp. [1‑16].
Chapter I. The Ovum and Spermatozoon.
General history of the Ovum, pp. [17‑25]. Special history of the Ovum in different types, pp. [26‑65]. The Spermatozoon, pp. [65‑67].
Chapter II. The Maturation and Impregnation of the Ovum.
Maturation of the Ovum, and formation of the polar bodies, pp. [68‑79]. Impregnation of the Ovum, pp. [79‑86]. Summary, p. [86].
Chapter III. The Segmentation of the Ovum.
Internal phenomena of Segmentation, pp. [88‑92]. External features of Segmentation, pp. [92‑122].
Introduction to Systematic Embryology. Pp. [125‑130].
Chapter IV. Dicyemidæ and Orthonectidæ. Pp. [131‑137].