Book

1 3|   and the uterus retains the embryo until it brings it to completion,
2 3|    for the completion of the embryo is many times more than
3 3|     entirely surrounding the embryo together with the chorion.
4 3|   upon, and of retaining the embryo, but in order that the latter
5 3|     to the os, expelling the embryo as it does so; and along
6 3|  work; they squeeze upon the embryo and propel it bodily outwards.
7 3|    the uterus is forcing the embryo forward it sometimes becomes
8 3| conditions which destroy the embryo or rupture certain of its
9 3|  movement on the part of the embryo itself brings on labour.