In his "Diseases of Women" Simpson speaks of a fistula left by the passage of an infant through the perineum.

Wilson, Toloshinoff, Stolz, Argles, Demarquay, Harley, Hernu, Martyn, Lamb, Morere, Pollock, and others record the birth of children through perineal perforations.
Birth Through the Abdominal Wall .-- Hollerius gives a very peculiar instance in which the abdominal walls gave way from the pressure exerted by the fetus, and the uterus ruptured, allowing the child to be extracted by the hand from the umbilicus; the mother made a speedy recovery.

In such cases delivery is usually by means of operative interference (which will be spoken of later), but rarely, as here, spontaneously.

Farquharson and Ill both mention rupture of the abdominal parietes during labor.
There have been cases reported in which the recto-vaginal septum has been ruptured, as well as the perineum and the sphincter ani, giving all the appearance of a birth by the anus.
There is an account of a female who had a tumor projecting between the vagina and rectum, which was incised through the intestine, and proved to be a dead child.

Saviard reported what he considered a rather unique case, in which the uterus was ruptured by external violence, the fetus being thrown forward into the abdomen and afterward extracted from an umbilical abscess.
Birth of the Fetus Enclosed in the Membranes .-- Harvey says that an infant can rest in its membranes several hours after birth without loss of life.