1. When the pains of parturition come on, they extend to many and various parts of the body, but especially to one or other of the thighs. Those who suffer most in the bowels are delivered most rapidly; those who suffer much in the loins are delivered with difficulty; those whose pain lies in the subumbilical region, more quickly. If the child is a male, a liquid, serum-like discharge, of a pale yellow colour, precedes; if a female, this discharge is sanguineous, but still fluid. Some women have neither during the period of parturition.
2. In other animals parturition is not painful, and it is evident that they suffer but moderately in the pains of labour. In women the pains of parturition are more violent, especially in those that are inactive or that are not well made in their sides, and are unable to hold their breath. They also suffer more in parturition, if they breathe in the meantime, compelled by the necessity of respiration. At first a fluid escapes when the fœtus comes to the birth, and the membranes are ruptured; after this, the embryo is excluded, the uterus being turned, and the uterus being turned inside-out.